Software Maintenance Overview
Software Maintenance Overview
- 1 Software Maintenance Overview
- 2 Types of maintenance
- 3 Cost of Maintenance
- 4 Maintenance Activities
- 5 Software Re-engineering
- 6 Component reusability
- 7 Flour or barn tick: what kind of insect and how to destroy it
- 8 Flour mite habitat
- 9 Propagation Features
- 10 What does a flour mite look like?
- 11 What does an insect eat?
- 12 What is a tick dangerous?
- 13 Control measures and prevention?
- 14 What is it: features and development cycle
- 15 Danger and harm
- 16 Methods of struggle
- 17 Preventive measures
- 18 Why is this insect dangerous?
- 19 If the tick is wound in flour
- 20 How to understand that an insect has gotten into the food?
- 21 How to get rid of a pest?
- 22 Useful Tips
- 23 Prevention methods
- 24 Conclusion
Software maintenance is widely accepted part of SDLC now a days. It stands for all the modifications and updations done after the delivery of software product. There are number of reasons, why modifications are required, some of them are briefly mentioned below:
Market Conditions — Policies, which changes over the time, such as taxation and newly introduced constraints like, how to maintain bookkeeping, may trigger need for modification.
Client Requirements — Over the time, customer may ask for new features or functions in the software.
Host Modifications — If any of the hardware and/or platform (such as operating system) of the target host changes, software changes are needed to keep adaptability.
Organization Changes — If there is any business level change at client end, such as reduction of organization strength, acquiring another company, organization venturing into new business, need to modify in the original software may arise.
Types of maintenance
In a software lifetime, type of maintenance may vary based on its nature. It may be just a routine maintenance tasks as some bug discovered by some user or it may be a large event in itself based on maintenance size or nature. Following are some types of maintenance based on their characteristics:
Corrective Maintenance — This includes modifications and updations done in order to correct or fix problems, which are either discovered by user or concluded by user error reports.
Adaptive Maintenance — This includes modifications and updations applied to keep the software product up-to date and tuned to the ever changing world of technology and business environment.
Perfective Maintenance — This includes modifications and updates done in order to keep the software usable over long period of time. It includes new features, new user requirements for refining the software and improve its reliability and performance.
Preventive Maintenance — This includes modifications and updations to prevent future problems of the software. It aims to attend problems, which are not significant at this moment but may cause serious issues in future.
Cost of Maintenance
Reports suggest that the cost of maintenance is high. A study on estimating software maintenance found that the cost of maintenance is as high as 67% of the cost of entire software process cycle.
On an average, the cost of software maintenance is more than 50% of all SDLC phases. There are various factors, which trigger maintenance cost go high, such as:
Real-world factors affecting Maintenance Cost
- The standard age of any software is considered up to 10 to 15 years.
- Older softwares, which were meant to work on slow machines with less memory and storage capacity cannot keep themselves challenging against newly coming enhanced softwares on modern hardware.
- As technology advances, it becomes costly to maintain old software.
- Most maintenance engineers are newbie and use trial and error method to rectify problem.
- Often, changes made can easily hurt the original structure of the software, making it hard for any subsequent changes.
- Changes are often left undocumented which may cause more conflicts in future.
Software-end factors affecting Maintenance Cost
- Structure of Software Program
- Programming Language
- Dependence on external environment
- Staff reliability and availability
IEEE provides a framework for sequential maintenance process activities. It can be used in iterative manner and can be extended so that customized items and processes can be included.
These activities go hand-in-hand with each of the following phase:
Identification & Tracing — It involves activities pertaining to identification of requirement of modification or maintenance. It is generated by user or system may itself report via logs or error messages.Here, the maintenance type is classified also.
Analysis — The modification is analyzed for its impact on the system including safety and security implications. If probable impact is severe, alternative solution is looked for. A set of required modifications is then materialized into requirement specifications. The cost of modification/maintenance is analyzed and estimation is concluded.
Design — New modules, which need to be replaced or modified, are designed against requirement specifications set in the previous stage. Test cases are created for validation and verification.
Implementation — The new modules are coded with the help of structured design created in the design step.Every programmer is expected to do unit testing in parallel.
System Testing — Integration testing is done among newly created modules. Integration testing is also carried out between new modules and the system. Finally the system is tested as a whole, following regressive testing procedures.
Acceptance Testing — After testing the system internally, it is tested for acceptance with the help of users. If at this state, user complaints some issues they are addressed or noted to address in next iteration.
Delivery — After acceptance test, the system is deployed all over the organization either by small update package or fresh installation of the system. The final testing takes place at client end after the software is delivered.
Training facility is provided if required, in addition to the hard copy of user manual.
Maintenance management — Configuration management is an essential part of system maintenance. It is aided with version control tools to control versions, semi-version or patch management.
When we need to update the software to keep it to the current market, without impacting its functionality, it is called software re-engineering. It is a thorough process where the design of software is changed and programs are re-written.
Legacy software cannot keep tuning with the latest technology available in the market. As the hardware become obsolete, updating of software becomes a headache. Even if software grows old with time, its functionality does not.
For example, initially Unix was developed in assembly language. When language C came into existence, Unix was re-engineered in C, because working in assembly language was difficult.
Other than this, sometimes programmers notice that few parts of software need more maintenance than others and they also need re-engineering.
- Decide what to re-engineer. Is it whole software or a part of it?
- Perform Reverse Engineering, in order to obtain specifications of existing software.
- Restructure Program if required. For example, changing function-oriented programs into object-oriented programs.
- Re-structure data as required.
- Apply Forward engineering concepts in order to get re-engineered software.
There are few important terms used in Software re-engineering
It is a process to achieve system specification by thoroughly analyzing, understanding the existing system. This process can be seen as reverse SDLC model, i.e. we try to get higher abstraction level by analyzing lower abstraction levels.
An existing system is previously implemented design, about which we know nothing. Designers then do reverse engineering by looking at the code and try to get the design. With design in hand, they try to conclude the specifications. Thus, going in reverse from code to system specification.
It is a process to re-structure and re-construct the existing software. It is all about re-arranging the source code, either in same programming language or from one programming language to a different one. Restructuring can have either source code-restructuring and data-restructuring or both.
Re-structuring does not impact the functionality of the software but enhance reliability and maintainability. Program components, which cause errors very frequently can be changed, or updated with re-structuring.
The dependability of software on obsolete hardware platform can be removed via re-structuring.
Forward engineering is a process of obtaining desired software from the specifications in hand which were brought down by means of reverse engineering. It assumes that there was some software engineering already done in the past.
Forward engineering is same as software engineering process with only one difference – it is carried out always after reverse engineering.
A component is a part of software program code, which executes an independent task in the system. It can be a small module or sub-system itself.
The login procedures used on the web can be considered as components, printing system in software can be seen as a component of the software.
Components have high cohesion of functionality and lower rate of coupling, i.e. they work independently and can perform tasks without depending on other modules.
In OOP, the objects are designed are very specific to their concern and have fewer chances to be used in some other software.
In modular programming, the modules are coded to perform specific tasks which can be used across number of other software programs.
There is a whole new vertical, which is based on re-use of software component, and is known as Component Based Software Engineering (CBSE).
Re-use can be done at various levels
Application level — Where an entire application is used as sub-system of new software.
Component level — Where sub-system of an application is used.
Modules level — Where functional modules are re-used.
Software components provide interfaces, which can be used to establish communication among different components.
Two kinds of method can be adopted: either by keeping requirements same and adjusting components or by keeping components same and modifying requirements.
Requirement Specification — The functional and non-functional requirements are specified, which a software product must comply to, with the help of existing system, user input or both.
Design — This is also a standard SDLC process step, where requirements are defined in terms of software parlance. Basic architecture of system as a whole and its sub-systems are created.
Specify Components — By studying the software design, the designers segregate the entire system into smaller components or sub-systems. One complete software design turns into a collection of a huge set of components working together.
Search Suitable Components — The software component repository is referred by designers to search for the matching component, on the basis of functionality and intended software requirements..
Incorporate Components — All matched components are packed together to shape them as complete software.
Flour or barn tick: what kind of insect and how to destroy it
This is a barely noticeable bug, the size of which does not exceed one millimeter. It can only be seen thanks to the color. It has reddish-brown legs and a dull white or light gray body with four stripes on the abdomen. Despite the lack of organs of vision, he is quite mobile.
The main feature of the flour mite is that it is able to move not only on horizontal, but also on vertical surfaces. This insect lives relatively short. But in a very short time, females can lay several hundred eggs. In addition, this pest easily adapts to any living conditions and perfectly tolerates sharp temperature fluctuations. Scientists have found that these insects survive even after exposure to radiation.
Flour mite habitat
This insect can often be seen in warehouses, barns, bakeries, sheds and fields. It is planted in food factories, in kitchens, grocery stores and cattle pens. It lives in the remains of plant foods, rotting wood, stacks and burrows of rodents.
In general, this pest lives where various types of products are stored, including dried fruits, nuts, flour and cereals. If a colony of such ticks develops in a room, then it can capture not only food products, but also medicines or tobacco products saved there. A favorable environment for their livelihoods are uncleaned remains of straw and fodder.
Like most arthropods, these mites need special conditions. They can reproduce only in the presence of a sufficient amount of organic substances and in the absence of direct sunlight. The optimal conditions for the continuation of the genus of these pests are considered to be temperatures from 18 to 27 degrees and humidity in the range of 15-18%.
Females of this insect are capable of laying several hundred eggs in their short life. At the end of the incubation period, a tick larva appears from each of them. It has three pairs of limbs, and its size is so small that it can be compared with a poppy seed. Before becoming an adult, it eats intensely and experiences two molts. There are no bristles or shells on her body.
After a few days, the tick larva transforms into a first-generation nymph, whose life span is only a week. During this time, she manages to significantly increase in size, acquire an additional pair of limbs and become like an adult insect. Under favorable conditions, after the next molt, it turns into a nymph of the second age. After a few days, an adult insect capable of reproducing offspring is obtained from it. The entire development cycle lasts two weeks.
Flour mite — who is it?
Its size is slightly less than 1 mm, it is a very small and barely noticeable creature that causes tremendous damage to all food products that are stored in the kitchen. A flour mite or, as it is commonly called, a barn spider — spoils everything in its path. After this parasite, eating is no longer possible, since you can get sick. Only the color of the arachnid tick helps to notice it in food. His body has a dull white hue, and his legs are brown. Moreover, these insects can even walk on a vertical surface. Despite the fact that the insect does not live that long, especially the females, they can lay eggs several hundred at a time — and this is very dangerous.
The insect is unpretentious and loves to live in almost any food product. But very often it can be seen in the kitchen, where there is cereal, legumes and food that is full of fat. Also, the flour mite often lives in the mill, and for many it is not a surprise that the insect so actively arranges for itself there a «paradise». In addition, the parasite prefers to live in a flour mill, in bakeries, shops, which are full of fresh pastries and warehouses that are not processed at all. Even mouse minks like flour mites, and a haystack for an insect is simply an incredible treat. The most favorable temperature for the life of this unpleasant creature is 22-24 degrees of heat. This is the most suitable and optimal condition to start breeding.
How to determine if an insect has started in a product?
Most often, flour mites begin to live in flour. Even if the human eye is not able to see the parasite, you can check whether there is a tick in the product, in a different way:
- Inspect the flour, especially look at its color. Since the flour mite has brown paws, a crust will appear on the croup, the same color as ordinary sand.
- Ticks have a smell that is quite specific, somewhat reminiscent of mint. Therefore, if the flour smells of mint, which is not characteristic of it, then a flour mite has definitely wound up inside it. So, by the way, with the rest of the products.
- You can just check the flour for unevenness. So, for example, pour the cereal onto the table, level it and see what happens next. If after 20 minutes the flour lies unevenly on its own, it means that there definitely is a flour mite.
- It is worth trying to use double-sided tape, which can be glued to any cabinet where there is flour, legumes and any other food product. After a couple of days, take a magnifying glass and try to see what is left on the tape. Not surprisingly, there will be small bodies of flour mite.
What it looks like under a microscope
Damage to the health of others
In addition to the deterioration of cereals and cereals that can not be bought, not to mention eating, the flour mite is harmful to human health.
- when a tick enters the respiratory organ or esophagus, a person may experience severe allergies up to asphyxiation and anaphylaxis,
- animals lose their appetite and there may be severe diarrhea, cats and dogs can lose weight and become passive,
- a person can have not only allergies, but also terrible itching,
- acne on the skin may appear red, which will be accompanied by severe scabies, the same thing can happen with pets.
To ensure that everything in your kitchen is calm, no one dwells from insects, and especially a flour mite, it is worthwhile to process the territory.
Be sure to clean all kitchen cabinets. Always remove crumbs, dust — because all this is a favorable habitat for the flour mite.
Barn tick — a very harmful insect, even looking at its image, you can cringe. These short brown legs and a small round body are not the most pleasant thing that can be. It is worth remembering that this parasite likes to live in the kitchen and spoil food, and people, even without noticing it, consume them. Therefore, in order not to get sick, since flour mites often spread diseases, feel good and do not endanger their children and pets, it is best to get rid of the arachnid creature in time. Do maintenance of the apartment more often, and then everything will be fine with you.
What does a flour mite look like?
A flour mite is a microscopic insect that can adapt to any conditions. Scientists believe that these parasites will survive even after radiation exposure! Due to its small size (0.32-0.67 mm) and its special color (white body with brown limbs), it is almost impossible to notice flour mites. They have a primitive structure and breathe the entire surface of the body. These insects are able to move very quickly not only on horizontal, but also on vertical surfaces (for example, glass).
In summer, females live two to three months, in winter, up to six months. During this time, they can lay about 200 eggs. Despite its name, this parasite feeds on products of both plant and animal origin. That is why the location of the flour mite can be completely different:
- Barns and warehouses in which grain is stored,
- Haystacks and straw, forage residues,
- Grain Currents
- Livestock sheds
- Burrows of wild animals and rodents,
- Plant residues,
- Litter of fields and forests,
- Fields on which corn and cereals grow,
- Flour mills,
- Grocery stores,
With a strong increase, you can see that dozens of flour mites have settled on a single grain of wheat
Parasites get into barns, storages and warehouses along with infected equipment, rodents, crops, equipment and even clothing of workers.
What does an insect eat?
The menu of these parasites includes many products:
- Flour (meat and bone, wheat and fish),
- Flax seeds,
- Oil products,
- Ground grits
- Dried fruits,
- Raw Smoked Products
- Bakery products,
- Compound feed
- Medicinal plants
- Plant bulbs,
- Grain processing products,
- Corpses and miscellaneous carrion.
The most delicious for the tick is the food that contains a lot of fat.
What is a tick dangerous?
Flour mite — the main pest of crops. The harm caused by this parasite is that it eats young processes and takes their place. In appearance, these cultures are no different from good, so they may not be noticed. The problem is that such material is completely unsuitable for planting, because it does not produce a crop.
On a note! With a strong infection with a flour mite, grain stocks seem to move.
Contact with this insect is dangerous for humans and pets. The fact is that tick excrement contains Escherichia coli and other pathogenic bacteria that make infected stocks unsuitable for human consumption. Penetrating into the body along with contaminated food, the parasite can cause tick-borne anaphylaxis or pancake syndrome. The condition develops within a few minutes after a meal.
Its main symptoms are:
- Food poisoning,
- Disorders in the genitourinary system,
- Quincke’s edema,
- Shortness of breath
- Anaphylactic shock,
- Severe cough (the tick may come out with phlegm)
- An allergy in the form of skin rashes or flour scabies. As a rule, this disease affects people who deal with grain or flour.
Advice! If at least one of the listed symptoms appears, you should immediately consult a doctor. In order to detect infection with a flour tick, it is necessary to pass the basic laboratory tests — urine and feces.
Control measures and prevention?
Control measures and the prevention of this dangerous pest should begin as early as possible. They consist in the proper preparation of premises for storing grain:
- Clean barns or warehouses well
- Take out all the leftovers
- Treat walls and floors with insecticidal aerosols,
- Do wet cleaning
- Process the grain — dry it to a dry or medium dry state,
- Go through stocks and eliminate all litter and dubious grains,
- Monitor constantly — signs of tick infection may appear later,
- Make sure that no rats or mice wound up in the room — these are the main carriers of pests.
Attention! In one winter season, a tick can damage half of all stocks. That is why it is necessary to deal with these pests even before the grain is placed in the warehouse.
If flour mites are already wound up during storage of grain, use effective methods of control:
Method 1. Warming grain to a temperature of 50 degrees or more.
Method 2. Grain cooling. In winter, regularly open the doors and windows of the warehouses so that the room is well ventilated. Ticks will die at a temperature of -4 degrees.
Method 3. The use of funds, which include phosphorous hydrogen. The stocks processed by him are covered with a dense film. Ticks die during the day.
Method 4. The use of insecticides against ticks — «Fostoxin», «Detia-EX-B», «Fostek.»
What is it: features and development cycle
Flour mite (it is also called barn, Acarus siro) — arthropod, one of the types of acariform mites. It is a dangerous pest not only of grain, but also of any grain products. Despite the fact that not many know about it, it belongs to the synanthropic arachnids. Often settles in the kitchens, where he chooses warm and dark angles for reproduction, adapts perfectly to adverse conditions. The main source of nutrients is the change of cereals. It can eat flour and any flour products, such as bread. In the absence of cereals, it can “switch” to grass or sunflower seeds. With pleasure he eats dried fruits or vegetables, milk and even cheese or meat products.
Flour mites have microscopic dimensions: not more than 0.7 mm in length. The body is oval, translucent. Migrate with the wind or rodents. May get into the room with dust on shoes or clothes. The most comfortable habitat is dark humid rooms (from 65% to 80%) with a temperature of 21 to 27 degrees. Once in favorable conditions, barn mites begin to multiply intensively.
Pest maturation is preceded by several steps: egg, larva, nymph. The first lasts about 6 days. An adult female tick hatches eggs for several days, then lays them in a secluded place so that nutrients are nearby. The larva emerging from the egg does not look like a sexually mature pest and has three pairs of legs. After molting, her body transforms, but still has an underdeveloped appearance. In a nymph state, the tick is able to remain until favorable conditions occur. If there is enough food, and the humidity and temperature are within normal limits, after a few days the nymph molts again, turning into an adult, ready for breeding. Over the course of 2-3 months of life, the female lays up to one and a half hundred eggs.
Danger and harm
The barn tick got its nickname for good reason. Most often it can be found in barns and warehouses, and from there it spreads to the kitchens. The pest easily adapts and is able to “wait” for long periods of lack of food. Over time, he gets into homework.
Mite-eaten grain, like other products, is dangerous for processing and eating. May cause an unexpected allergic reaction, making the human or animal body hypersensitive to allergens. Chitinous shells remaining after the links, provoke an allergy to the skin, or flour scabies, which is especially acute in children. In addition, dangerous bacteria and infections, such as E. coli, are present in the waste products of ticks. Among the consequences of eating tick-spoiled foods are various diseases of the gastrointestinal tract, diseases of the liver and kidneys.
A flour mite is easily detected: a layer of flour is scattered on the table, leveled by hand or spoon. If after a while the smooth surface becomes loose — the pest has settled in the flour. There are other signs: a bitter taste, a light mint smell and a grayish tint.
Methods of struggle
- Cooling grain or its products. At 5 degrees below 0, the pest dies.
- Heating infected foods above 55 degrees.
- Mechanical cleaning will help reduce the level of infection.
For chemical pest control are used:
- preparations with phosphorous hydrogen in the composition,
- contact insecticides,
- sulfur preparations.
The infected product is subjected to gas disinfestation or spraying, depending on the degree of infection and the volume of the room. Chemical methods are not advisable to apply in room conditions: they are designed for processing large quantities of grain. At home, it is better to do with annealing or freezing, throw away products with obvious signs of infection.
Prevention of flour mite will help prevention. Особенно она важна для крупных хранилищ, ведь за зиму мучной клещ способен выесть зародыши у половины всех зерен.Spoiled seeds will be unable to germinate and produce the next crop. They can not be used even for flour.
For large enterprises, preventive measures should include:
- Inspection of warehouses for the presence of a pest.
- Regular insecticide treatment of containers for transporting grain.
- Preparing granaries before placing grain. It involves cleaning and full wet pest control.
- Preparation of the grain itself: drying, purification from impurities.
- Processing ready-to-store grain with contact insecticides.
- Storage of grain and products from it at low temperatures, maintaining moisture uncomfortable for a flour mite.
- Regular movement of layers of grain and ventilation of the premises.
- Regular examinations for pests.
So that the flour mite does not appear in the house or apartment, it is enough to follow the following rules:
- Do not purchase or bring home flour of dubious quality: grayish, with an unusual smell.
- Be wary of flour and other products sold at discounted prices.
- Buy stocks of cereals and flour in small portions, store them in a clean airtight container.
- Food for people and animals (especially dry food) should be stored in different places.
- Ventilate and rinse the storerooms regularly with insecticidal solutions.
- Dry foods that are especially susceptible to tick infection (grain and bone meal, cereals, herbs, dried fruits).
- To take out in the frost or warm flour, cereals and other edible supplies to be stored for a long time.
At home, you can scare off the flour mite with plant-based products. Does not tolerate the pest of the smell of garlic. Therefore, in a container with flour or cereals, put a clove. For the same purpose, you can use bay leaf.
Food infected with flour mites can be a serious health hazard. Therefore, it is important to always monitor the quality of flour, dried fruits and cereals; at the slightest suspicion of a pest, infected products are thrown away or burned.
Why is this insect dangerous?
The flour mite causes great harm. It spoils the grain and reduces the germination of the crop. Destroying crops, he leaves behind waste products containing E. coli and other pathogenic microorganisms. It eats not only cereals, but also flax seeds, sunflowers, corn, crushed cereals, flour, dried fruits and meat waste.
The infected product becomes unfit for human consumption. It can cause poisoning, scabies, Lyme disease and allergic reactions. By consuming such products, a person runs the risk of contracting urticaria and getting malfunctioning of the genitourinary or respiratory systems. In animals that have eaten such food, severe diarrhea may appear and appetite may disappear.
If the tick is wound in flour
Flour mites are found not only in warehouses or barns, but also in ordinary kitchens, and most often in flour. A brown crust resembling sand appears on the surface of the infected product. The flour itself smells like mint and has a sweet taste.
Ticks are constantly moving, so uncomplicated experience will help to identify them. Pour the flour onto a flat surface and carefully level it. Wait 10-15 minutes and evaluate the result. If the product is infected, tubercles will immediately appear on the table.
Since flour mites are in constant motion, you can quickly find them by conducting a simple experiment with flour on the table
Another easy way is double-sided tape. Attach it inside the cabinet in which to store supplies of flour, legumes and dried fruits. After 3-4 days, remove the tape and carefully examine it through a magnifying glass.
Advice! Pay attention to your feelings after working with flour or cereals. If your hands began to itch and become covered with a small rash, stocks should be checked for ticks!
Having discovered insects, start an immediate fight with them:
- Put the infected products in a bag and put them in a trash can, located away from home,
- What you are not sure about, try to freeze for a week. Eggs, larvae and adults die at a temperature of -18 degrees. Then sift stocks and remove those parts that are suspicious,
- Keep clean in drawers and cabinets — there should be no crumbs in the corners. Use a vacuum cleaner for perfect cleaning.
- Wash the cabinets with a solution of vinegar and blow dry with a hairdryer,
- Treat containers designed to store food. Wash them thoroughly with hot water and dry thoroughly. If possible, pass all the cans and containers to heat treatment,
- Store flour and cereals in vacuum bags or airtight jars,
- Keep track of temperature and humidity — try to keep cabinets away from the gas stove,
- The flour mite does not tolerate the aroma of garlic and bay leaf. Put them in the kitchen and forget about the problem,
- Do not buy products that appear wet or spoiled, or those that are in damaged packaging,
- Do not make large stocks, buy products in small portions (for 1-2 weeks),
- Keep animal feed separate from other food supplies — it is more susceptible to infection by various pests.
See also: flour mites under a microscope (video)
How to understand that an insect has gotten into the food?
Most often, the pest begins to live in flour. Sometimes people simply cannot make out such an insect. But its presence can be determined by a number of characteristic features.
These mites have a rather specific smell, vaguely reminiscent of mint. If such a flavor appeared in food supplies, then this pest settled inside it. In addition, food infected with a tick acquires a subtle sweetish taste.
Cereals and flour products infected with this parasite change color. A crust appears on their surface, resembling ordinary sand in appearance. There is another effective way to check flour for pests. To do this, it is poured onto the table, leveled and left for twenty minutes. If after this time, tubercles appear on its surface, then a tick has gotten into it.
The presence of a parasite can also be detected using double-sided tape. To do this, it is glued to any cabinet in which dried fruits, legumes, cereals or flour are stored. After a couple of days, you need to take a magnifying glass and carefully look at what is stuck on the tape.
How to get rid of a pest?
Since this insect not only destroys products, but also carries dangerous diseases, you need to fight it. To get rid of the tick you need to carry out fumigation of grain. This method of killing parasites is based on the use of gas mixtures that are harmful to microorganisms. Such cans with toxic substances are widely used in agriculture and industry.
Contact insecticides, as well as chemicals based on sulfur and hydrogen phosphorus, have proven themselves well. However, they are impractical to use at home. They are usually used to disinfect large quantities of cereals. Houses can be limited to freezing or calcination.
Another radical mite control measure is the release of contaminated products. Immediately after this, the places in which they were stored must be disinfected. No less effective are the methods based on creating conditions unfavorable for the existence of these pests. They can not stand the cold and low humidity.
In order for the struggle with the tick to be effective, it is necessary to prevent the presence of rodents near places where food stocks are stored. A good effect is given by repeated washing and the use of a strong chlorine solution, followed by ventilation of the room.
At home, you can use deterrents like lavender, garlic and bay leaf to preserve food. And in order to get rid of these pests forever, it is necessary to find the main focus of their spread and destroy it. Moreover, not only those products in which the parasite is wound up are subject to recycling, but also those that simply lay nearby.
To prevent flour mites from appearing in kitchen cabinets, they need to be cleaned regularly. It is advisable to constantly wipe all surfaces from crumbs and dust. Cans used to store cereals should be dry, clean and tightly closed. They are recommended to be placed in cool places, away from heat sources. In addition, cereals or flour of dubious quality, bought at a great discount, cannot be brought home. Very often, they sell expired and low-quality goods at reduced prices, which already have larvae of pests. Therefore, saving a couple of rubles, you can get yourself a real problem.
Do not store large stocks of products at home. Buy as much flour and cereals as you can in two weeks. Animal feed is more susceptible to tick infection. Therefore, it must be kept separate from other food supplies.
It is strictly forbidden to mix fresh and expired products. A prerequisite for the prevention of flour mite is the maintenance of an appropriate microclimate. The rooms should be fresh, clean and not too hot.
From the foregoing, we can conclude that the flour mite is a dangerous pest that destroys food supplies and carries serious diseases. These annoying insects perfectly adapt to environmental conditions, and therefore are widespread in nature. These arthropods actively reproduce in high humidity. Throughout its short life, the female reproduces more than one hundred small ticks. The entire cycle of their development, starting with the larva and ending with the imago, lasts only two weeks.
To get rid of bugs settled in cereals or flour, you need to use an integrated approach. And if you were not able to get rid of them yourself, you will have to use the services of professionals.