Pesticides and Pest Control

 Integrated pest management (IPM), is a broad-based approach that integrates practices for economic control of pests using three methods - biological methods, mechanical methods and chemical pesticides.

Azadirachtin is the primary active insecticidal compound extracted from the seeds of the neem tree (Azadirachta indica).

Agrochemicals are chemical products used in agriculture to improve crop production. This category includes pesticides, fertilizers, and plant growth regulators.

Beta-nitropropionic acid is a mycotoxin, a potent mitochondrial inhibitor toxic to humans.

This option is correct because all are biodegradable insecticides.

This is the correct option. Nitrophosphate is a complex fertiliser and not a weedicide.

This option is correct because aldrin, dieldrin and BHC are nonbiodegradable insecticides.

Another way to get rid of insects is to use pheromones. These chemicals help induce the mating urge and attract insects of opposite sex. Methyl engenol attracts the oriental fruit fly. 

Rotenone is a naturally occurring compound found in the roots of several tropical plants and is used as a broad-spectrum insecticide.

Bacillus thuringiensis (Bt) produces toxins that are specifically lethal to certain insect pests, making it a valuable tool in biological pest control.

Herbicides are chemical substances specifically designed to kill or inhibit the growth of unwanted plants, commonly known as weeds.

Ethylene dibromide is a well-known fumigant used for grain storage. While aluminium phosphide is also used as a fumigant, ethylene dibromide is the classic textbook example for this specific application.

Urea is a nitrogen-rich chemical compound widely used in agriculture as a fertilizer to provide nitrogen to plants for growth.

DDT (Dichlorodiphenyltrichloroethane) is a potent insecticide that was historically used extensively to control mosquito populations and prevent diseases like malaria.