Insecticides in gardening or agriculture are used to reduce the population of an insect which is causing harm to the crop to an acceptable level. They can range from something as simple as an insecticidal soap (such as dish soap) to very complex and very poisonous commercial insecticides which kill all the insects in its application range.
Yes in most states
If you mean ladybirds, the red beetle with the black spots, they will be killed by insecticides. They however eat aphids so are beneficial and remove the need for spraying for greenfly.
Insecticides are dependent on crop yield. Monocultures have a greater crop yield, and use less land to produce any amount of crop.
Insecticides are dependent on crop yield. Monocultures have a greater crop yield, and use less land to produce any amount of crop.
If they do they'd be dealt with in the field by use of insecticides.
"Insecticides" is a plural noun.
yes , i think insecticides are irritant substances
Any of the granules that are broad spectrum like Detaguard, talstar etc
Plant lots of bee friendly plants and don't use insecticides.
Yes. It is the plural of insecticide, as in, "There are various insecticides from which to choose."
Insecticides containing permethrin and synergized pyrethrins are common in shampoos and lotions that can be purchased over-the-counter. If you use one of these products, follow their directions precisely, especially the amount of product to use, frequency of application, and whether the hair should be wet! Remember, these products contain insecticides and should be used with care. Lindane is available by prescription, it is a more toxic product and its use is discouraged. Physical removal of lice together with chemical application will increase treatment success. It is not safe to use insecticides on your scalp that are not intended for use on the human body.
A sprayer applies the spray more evenly and therefore more economically.