Chimical control and toxicology TVP

An insecticide having low LC 50 value indicates

• More toxic

• Less toxic

• Non toxic

• Moderately toxic

Which colour on the label of the container indicates the highly toxic pesticide?

• Bright Red

• Bright Green

• Bright Blue

• Bright yellow

Expand MRL

• Maximum Reproduction Level

• Minimum Residue Limit

• Maximum Residue Limit

• Maximum Residue Level

Expand DDT

• Dichloro Diphenyl Trichloroethane

• Difloro Diphenyl Trichloroethane

• Dibromo Diphenyl Trichloroethane

• Dichloro Diphenyl Trichloroethene

Bacillus thuringiensis is

• Contact poison

• Stomach poison

• Fumigant

• None of the above

Aluminium Phosphide is an example of

• Contact poison

• Stomach poison

• Fumigant

• None of the above

Which of the following is a synthetic derivatives of nereis toxin ?

• Cartap

• Bensultap

• Thiocyclam

• All the above

Which of these insecticides is derived from actinomycetes ?

• Nereistoxin

• Dimilin

• Plumbago

• Spinosad

The insecticidal activity of various isomers of DDT falls in the order

• Para - para > meta - para > meta - ortho > ortho - ortho

• Meta - para > para - para > ortho - ortho > meta - ortho

• Ortho - ortho > meta - para > meta - ortho > para - para

• None of the above

Which of the following is an acaricide (Miticide) ?

• Dimethoate

• Monocrotophos

• Dicofol (kelthane)

• BHC