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What do Farmers help population of crops to by spraying the weeds and controlling insect?
Wiki User
∙ 6y ago
an insecticide is anything that kills insects. if said insect is a crop damaging pest then killing it will help the farmer gain a better crop
Wiki User
∙ 15y ago
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How do you remove wasps?
kill them by spraying insect killer or deoderant on them, or buy a swatter.
The insect population smaller than the human population?
Insect population is larger.
How might a knowledge of insect metamorphosis help in controlling insect pests?
I think the answer is that you have to find which stage it helps for the controlling of insects. I don't think the answer is right because I am only 5.
What do farmers call the chemicles that they use to kill insect pests called?
Chemicals used by farmers to kill insect pests are called pesticides.
What is one insect that is used by farmers?
lady bugs
The population of a leaf insect?
insect eat a leaf
In Top of The Food Chain the narrator suggests that spraying wouldn't have made a difference to the insect vector?
Chanel No. 5
Why do insects ruin farmers crops?
because the insect need to eat
When should farmers spray insecticide?
When the number of damaging insects has reached a level where further crop loss is greater than the costs and disadvantages of spraying. Typically this level is reached only when the insect pressure is so great as to overwhelm the methods already suggested by the use of Integrated Pest Management.
What could cause a decrease in insect population?
an increase in the spider population
What bacteria is helpful to farmers?
Bacillus thuringiensis. It allows the plants to produce a natural insect repellnt.
Why are frogs and toads important?
They control the insect population
