Agricultural Entomology - Study Mode

[#71] The highest pesticide used crop in India is
Correct Answer

(A) Cotton

Explanation

Solution: The highest pesticide used crop in India is Cotton. Cotton crop is the largest consumer of pesticides in India, genetically modified Bt cotton seed was introduced in 2002-03 specifically to reduce its consumption. With only 5 percent of gross cropped area, cotton reportedly consumes 36 - 50 percent of total pesticides. It is widely accepted and Bureau of Industrial Costs and Prices (BICP)'s analysis also confirms that cotton and rice are the major pesticide using crops in India.

[#72] Major waste of terrestrial insect is
Correct Answer

(A) Uric acid

Explanation

Solution: The major waste of terrestrial insects is Uric acid. Most terrestrial insects produce uric acid as their main nitrogenous waste product. Uric acid is a relatively non- toxic and highly insoluble waste product. Therefore, it can crystallize out of solution and may be either retained in the body, or eliminated as a solid waste material with little water loss.

[#73] The probosis in the mouth parts of the butterfly is formed from
Correct Answer

(B) Galea of maxillae

Explanation

Solution: The probosis in the mouth parts of the butterfly is formed from Galea of maxillae. A long, slender proboscis is formed by the two galeae of the maxillae which interlock to enclose a central food canal. Only galea of maxillae of the two sides joins to form a long coiled proboscis. Butterflies and moths have mouthparts specialized for probing into a flower and sucking out nectar.

[#74] Pink boll worm belong to the order
Correct Answer

(C) Lepidoptera

Explanation

Solution: Pink boll worms belong to the order Lepidoptera. Bollworm, any larvae of various moths belongs to order Lepidoptera, including the pink bollworm (Pectinophora gossypiella, family Gelechiidae) and some Helicoverpa species. The pink bollworm is an insect known for being a pest in cotton farming. The adult is a small, thin, gray moth with fringed wings. The larva is a dull white caterpillar with eight pairs of legs with conspicuous pink banding along its dorsum. The larva reaches one-half inch in length.

[#75] Following is an example for secondarily wingless insect
Correct Answer

(B) Head louse

Explanation

Solution: Secondarily wingless insect is Head louse. Head lice are wingless insects that spend their entire lives on the human scalp and feed exclusively on human blood. Adult head lice are small (2.5 - 3 mm long), dorsoventrally flattened (see anatomical terms of location), and wingless.