What Insects Does Sevin Dust Kill

What Insects Does Sevin Dust Kill?

Insects that Sevin dust kills include potato beetles, parasitic wasps, ladybugs, bees, roaches and fleas. Sevin dust contains a chemical called carbaryl, which kills over 100 types of insects.

Sevin dust works by degrading an insect’s nervous system through ingestion or direct contact. There are different variations of Sevin dust, including 5-percent carbaryl dust, 10-percent carbaryl dust and garden dust. Sevin-5 is reserved for outdoor use on garden lawns, and it kills 65 different pests, including Japanese beetles, grubs and ticks.

Sevin dust can be applied in powder form or mixed with water for spraying on crops, such as tomato plants. Sevin dust is normally applied on fruits and vegetables, but the crops must be washed with water before these foods are consumed. However, there are times when spraying around the plant is necessary. For instance, 2 tablespoons of 50-percent Sevin powder with 1 gallon of water is for application on weed-infested areas around tomato plants, which are havens in which stink bugs thrive. The solution should not be sprayed directly on the tomato plants, and Sevin dust must never be applied on flowering plants to avoid killing honeybees.

The liquid form of Sevin dust kills insects like Colorado potato beetles. Liquid Sevin dust works best on plants that reach up to waist or chest level. Adding water to liquid Sevin dust is still necessary for thorough application of an area.

Safety of Sevin Dust

I need to know if this pesticide Sevin Dust is a safe product to use in garden for pests and whether or not it is poisonous. I was reading about this stuff on a website foodtruthfreedom.wordpress.com and read that it is poison not just for insects but humans as well. They claim the Sevin dust is consumed via the leaf of the plant, the produce of the plant and that it gets in the water system after rain and or watering the garden. I been using this stuff for years due to my father using it when i was a kid. I hope it hadn’t affected my health in any way. If Sevin Dust is bad for humans, why would they allow the stores to sell it? I learn that the technical name for it is Carbaryl and that it was first manufactured during the 50s by some plant which sold out. I noticed that it seemed to have damaged my tomato and squash plants as well for some reason or another. Don’t know whether to blame the Sevin dust, drought or too much rain lately. My squash plants are just rolling over and dying for some reason. I have always put Sevin dust on them in the past, especially at the bottom of plant where the squash bugs are at. I haven’t seen any squash bugs by the way, not yet. The tomato plants seems to be dying as well. I guess I will wash the dust off of them. I didn’t put that much on them, just sprinkled it as always.

i hope you can provide me with good information on this Sevin Dust. i think I will stop using pesticides in the future. I also read on the internet that self-rising flour is good for fighting pests. So is garlic/red pepper spray. Guess I will try and see. Thanks, hope to hear from you soon.

1 Response

Hello. Thank you for your question. I have included a link to an educational publication. Please review its information. I am also including the Hardin County Extension Office contact information in case you need additional information.


How to Use Sevin Dust on Tomato Plants

Sevin dust is one of the brand names of an insecticide labeled for use on tomatoes and other crops, and also for dusting the coats of farm animals afflicted with pests. The active chemical in it is carbaryl. It kills tomato armyworms, fruitworms, hornworms and stinkbugs, as well as bugs that attack other vegetables. This is a toxic powder; wear a mask, gloves and goggles when handling it.

Step 1

Select a Sevin dust formula that comes in a shaker can ready for use in the home garden.

Step 2

Check the weather outside for windy conditions. Postpone Sevin dust application whenever you expect a breezy day.

Step 3

Dust your tomato plants prior to harvest as needed. Coat both the top and bottom of all leaves with a thin layer of Sevin dust. One manufacturer recommends following the rate of ½ lb. of dust per 1,000 square feet of tomato plants as a guideline for how much is safe to use.


Stop using Sevin dust no later than three days before you harvest the tomatoes.


What Can I Put on the Turnip Greens in My Garden to Keep the Bugs Off?

Tender turnip greens are for some a well-kept garden secret. While chard and kale are popular greens in the garden, some people are devoted to other greens such as mustard, beet or turnips. Healthy greens are not only delicious on the dinner table, they’re important to the health of the whole plant. Turnips are prey to a number of pests and require careful attention to keep them free of insects. It is worth protecting turnip greens — they are high in vitamins E and C, have usable calcium, folate and a full range of amino acids.

Common Pests

Turnips and other greens are especially bothered by several insect pests. Aphids are a number one culprit. They suck the sap from the plant. Cabbage loopers love turnip greens just as you do. Flea beetles can be a major problem. Take the time to learn what these turnip pests look like and how to spot the adults and larvae. This will give you an idea where to target your approach to getting rid of them.

Garden Health

Prevention is always the fist line of defense when it comes to any garden pests. Keep weeds away from your plants to reduce habitat for insects. Insects are interdependent, so if one type is encouraged by weeds or other foods they may like, the ones who prefer leafy greens may move in too. Keep the ground free of dead and dying plants and rotted vegetables to reduce their food. Keep your turnips well nourished with rich compost because healthy plants have more resistance to pests.

Beneficial Insects

Introducing beneficial insects to the turnip bed can reduce the population of harmful insects. Examples of these are ladybugs, green lacewings and beneficial nematodes. You can purchase them at some garden centers or through an online distributor. These are predator and parasitic insects that can help you battle the undesirable bugs on your turnip greens. Make your garden attractive to them by providing other foods they like such as flowers for nectar.

Synthetic Pesticides

The synthetic pesticides for turnips include spinosad, whose makers claim it has low environmental impact, long residual effect and is no harmful to beneficial insects. For aphids or whiteflies use pymetrozine. It is a direct spray specifically for this type of bug and can kill them quickly.

Natural Insecticides

Turnips can be benefited by an interplanting of some other plants. These discourage insects that target turnips. They include mint, onions and garlic or herbs like anise, chives and coriander. You can also combine household products to create a useful natural pesticide. A homemade horticultural oil can be made from soybean oil mixed with liquid dish-washing soap to suffocate the bugs. Some people simply spray them off with a hose. But if you do this, make sure to also remove them from the ground beneath the plant. Purchase diatomaceous earth at a garden center to dust on plants to deter aphids.


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