Agricultural Entomology MCQ Question and Answer | Agriculture MCQ Question

Mellipedes fall under the Myriapoda class of Arthropoda.
Millipedes are a group of arthropods that are characterized by having two pairs of jointed legs on most body segments, and class Diplopoda. Diplopoda is the largest class of myriapods, an arthropod group that also includes centipedes and other multi-legged creatures.
Among myriapods, millipedes have traditionally been considered most closely related to the tiny pauropods, although some molecular studies challenge this relationship.

Termite is a polyphagous pest.
Termites are a group of detritophagous eusocial insects which consume a wide variety of decaying plant material, generally in the form of wood, leaf litter and soil humus.
Males (drones) are haploid and develop from unfertilized eggs, while females (both workers and the queen) are diploid and develop from fertilized eggs.
Termites are polyphagous pests causing economic losses to a large number of crops worldwide.

Mostly predacious insects have Prognathous type of head.
Prognathous type of head refers to the long axis of the head that is horizontal and in line with the long axis of the insect's body.
In dragonflies and mayflies, the mouthparts are oriented downwards concerning the cephalocaudal axis (orthognathous), whereas earwigs and stoneflies have prognathous (forward projecting) mouthparts.

White grub belongs to the order Coleoptera.
The white grubs have been defined as larvae of Melolonthidae (Wolcott, 1933) they belong to the order Coleoptera, Superfamily Scarabaeidae. The Scarabaeidae have three families viz. Scarabaeidae Passalidae and Lucanidae.
White grubs are the larval or grub stage of several species of beetles and chafers. The two most troublesome species in New Hampshire are the European chafer (Rhizotrogus majalis) and the Japanese beetle (Popillia japonica). These beetle larvae are usually C-shaped and can be found feeding among grass roots.

Exorista sorbillans belong to the family Tachinidae.
Exorista sorbillans, the uzi fly, is a species of bristly fly in the family Tachinidae that is a parasitoid of caterpillars and is a problem for silkworm rearing in tropical regions of South and Southeast Asia.
The species found in India, Exorista bombycis is sometimes synonymised with this species but is distinct from specimens obtained from the type locality, the Canary Islands.

1 : 6 is the ratio of parasitoid: host eggs in trichocard production.
The emerging parasites readily parasitize the fresh eggs. The parasitoid-host ratio is adjusted accordingly to 1 : 6 to get effective parasitism.
The parasitized eggs in the Tricho Card turn back in 3 or 4 days and the adult parasitoids emerge in 8 to 10 days from the date of parasitization.

The pest which attacks both in the field and storage of pulses is Pulse beetle.
The most important insects damaging pulses in field and storage are referred to as bruchids or pulse beetles.
Adult pulse beetles, being very weak and having a short life, cannot move in grain mass and are restricted to top 15 cm layer. Even the adults emerging out of the infected material cannot move in the intergranular space and could die before mating. Movement of adult pulse beetle can be prevented by placing a 7 - 10 cm layer of dry sand at the top of grain mass.

Perilissus cingulator is the larval Parasitoid of a Mustard sawfly.
It is greenish-black with a wrinkled body and eight pairs of pro-legs. On slightest touch the larva falls to round and feigns death.
The larvae had 6 instars, fed on the leaves, and pupated after 14 - 16 days.

India has monopoly in Munga silk.
Muga silk is a variety of wild silk geographically tagged to the state of Assam in India. The silk is known for its extreme durability and has a natural yellowish-golden tiny with a shimmering, glossy texture. It was previously reserved for the use of royalty.
India produced 158 tonnes of muga silk in FY 2014 - 15, out of which 136 tonnes were produced in Assam. India's total silk output in the same period amounted to 28,708 tonnes.

The noctuid which is common pest to both pigeonpea and chickpeas is Helicoverpa armigera.
Helicoverpa armigera is a species of Lepidoptera in the family Noctuidae. It is known as the cotton bollworm, corn earworm, or scarce bordered straw. The larvae feed on a wide range of plants, including many important cultivated crops.
The greatest damage is caused to cotton, tomatoes, maize, pigeon peas, chick peas, alfalfa, and tobacco.