caterpillars and mustard greens,this type of caterpillar is equally tender like betel leaf,This caterpillar has many interesting feathers This caterpillar bulb has a dangerous toxin when exposed to human hands.so we must be careful if you want to pick vegetables do not get exposed to this caterpillar... 
Tingling, itching, redness and stinging are the reactions that arise when you touch or are exposed to caterpillars that are toxic. So how to avoid and treat caterpillars attack ?
Caterpillars are known to have no sting like bees, but there are some species that can cause an itchy reaction, tingling and even severe allergies when it touches caterpillars. this is because some caterpillar species have a toxic fur that can cause an itchy and allergic reaction for some people .
Here's how to solve caterpillars
Spraying insecticide directly on the nest in the foliage and the plant is able to control the caterpillar attack quickly. Morning is the best time, when the caterpillars bask in the sun .
Bacillus thuringiensis is a natural pesticide in the form of bacteria belonging to facultative pathogens and can live in the leaves of plants and on the soil. These bacteria can produce proteins that are toxic (poison) that can kill insects. This type of control is designed not only to control the caterpillars but also to turn off the caterpillars.
Remove the caterpillar feathers stick to the skin by using paper, gloves or masking tape. Eliminate the feathers as quickly as possible before spreading to other body parts.
Use hot water or wash it with water and soap to help remove the remaining caterpillar poison ..
Resistant desire to scratch the skin area that itch due to caterpillar poison. This can cause injuries that can cause infection of the skin. We recommend using creams or lotions that can reduce the itchy reaction due to insect bites.
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BY RIJAN LERRY..