List of top Entomology Questions on Pest Management

In nematode taxonomy, the de Man's ratio c' is

Virus transmission by whitefly is
(A) Non-persistent type
(B) Non-propagative- type
(C) Persistent and circulative type
(D) Semi-persistent type
Choose the correct answer from the options given below:

Vector of rice tungro virus
(A) Graminella nigrifrons
(B) Nephotettix virescens
(C) Nilaparvata lugens
(D) Nephotettix cincticeps
Choose the correct answer from the options given below:

Pear decline caused by Caudidatus Phytoplasma pyri is transmitted by

Given below are two statements:
Statement (I): Propagative viruses cannot multiply in their respective vectors.
Statement (II): Non persistant viruses are generally stylet born.
In light of the above statements, choose the most appropriate answer from the options given below:

Given below are two statements:
Statement (I): In non-persistent transmission, the ability to transmit is lost between molts.
Statement (II): In persistent transmission, the ability to transmit is retained between molts.
In light of the above statements, choose the most appropriate answer from the options given below:

Given below are two statements:
Statement (I): 99% of the arthropod vectors are insect and 55% of these are aphids
Statement (II): Most of the insect vectors (95%) are beetle
In light of the above statements, choose the most appropriate answer from the options given below:

Lufenuron is

What is the mode of action of neonicotinoid insecticides?

Athalia lugens belongs to which of the following insect order?

Of late, the damage by gall fly, Lasioptera falcata has been on the rise in

In paddy, the elongation of leaf sheath after the infestation of gall fly is due to

Parrot beaking is caused by mirid in

The required moisture content for the storage of seed of oil seeds is

Given below are two statements:
Statement (I): Pest Management in humid areas is more complex because of the greater number of pest species which must be controlled. It requires an elaborate spray program for treatment of diseases.
Statement (II): In arid areas a less complex spray program may enhance the utilization of cultural practices and biological agents in pest management.
In light of the above statements, choose the most appropriate answer from the options given below:

Peritrophic membrane lines the
(A) Midgut internally
(B) Midgut and Foregut
(C) Hindgut
(D) Foregut
Choose the correct answer from the options given below:

Given below are two statements:
Statement (I): Crop Rotation exerts most effect on pests having a narrow plant host range and limited mobility
Statement (II): Crop Rotation exerts most effect on pests having a wide plant host range and limited mobility
In light of the above statements, choose the most appropriate answer from the options given below:

Juvenile hormone is secreted by

Who was the discoverer of insecticidal properties of DDT?

A condition caused due to insect feeding which produces symptoms of a disease in plants is termed as