Agricultural Entomology MCQ Question and Answer | Agriculture MCQ Question

Rubber septa are used in Pheromone trap.
A pheromone trap is a type of insect trap that uses pheromones to lure insects. Pheromone traps are used both to count insect populations by sampling, and to trap pests such as clothes moths to destroy them.
Rubber septa are most commonly used to seal medicinal vials containing either a liquid or freeze-dried solid (which is then liquefied in water or other substance). The medicine is drawn from the vial using a needle, then injected.

Lemon butterfly is Papilio demoleus.
Papilio demoleus is a widespread swallowtail butterfly. The butterfly is also known as the lime butterfly, lemon butterfly, and chequered swallowtail.
This butterfly is an avid mud-puddler and visitor of flowers. It basks with its wings held wide open on tufts of grass and herbs, and generally keeps within a metre of the ground, even on cloudy days.
The female butterfly goes from plant to plant, laying a single egg at a time on top of a leaf, which it holds onto with its legs, and flies off as soon as the egg is laid. The egg is round, light yellowish, flattened at the base, smooth-surfaced, and about 1.5 mm in height. Fertile eggs develop a small red mark at the apex.

Sugarcane is recently infested by Ceratovacuno lanigera wooly aphid.
Woolly aphids are sap-sucking insects that produce a filamentous waxy white covering that resembles cotton or wool. The adults are winged and move to new locations where they lay egg masses. The nymphs often form large cottony masses on twigs, for protection from predators.
The sugarcane woolly aphid (Ceratovacuna lanigera) is an aphid in the superfamily Aphidoidea in the order Hemiptera. Found in India and Southeast Asia, It is a true bug and sucks sap from plants. It is a foliage sucking aphid species.

Stone or nut weevil insect of mango has quarantine importance.
This is an important specific pest of mango especially in South India. The pest affects export potential of mango (quarantine pest).
It is a monophagous pest on mango where in varieties, Totapuri and Neelam are highly susceptible. Adults hibernate on the tree trunk during off season.

Bovicola caprae is a serious pest of Goats.
Bovicola is a genus of lice belonging to the family Trichodectidae.
Lice are external parasites that spend their entire lives on sheep or goats. Both immature and adult stages suck the blood or feed on the skin. Goat lice are host-specific and only attack goats and their close relatives such as sheep.

Flooding of the fields will help in control of White grubs, Termites and Cut worms.
White grubs are the immature forms of scarab beetles, the well-known May/June beetles, masked chafer, and Japanese beetle. The grubs, $$\frac{1}{4}$$ to over 1 inch (6 - 25 mm) long, are white with brown heads and have six prominent legs.
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.
Cutworms are moth larvae that hide under litter or soil during the day, coming out in the dark to feed on plants.

'Sterna spatula' is present in Gall midges insect.
Cecidomyiidae is a family of flies known as gall midges or gall gnats.
The larva is peripneustic. The head is tiny, cone-shaped, and has two posterolateral extensions. The mouthparts are reduced, with minute styliform mandibles.
The relatively prominent antennae are two-segmented. Integumental setae or papillae are important in taxonomy since they are constant in number within groups. The prothorax has sclerotized sternal spatula.

The most cosmopolitan polyphagous insect is Locust.
Locust, is any of a group of insects that are distributed worldwide, the common name of which generally refers to the group of short-horned grasshoppers that often increase greatly in numbers and migrate long distances in destructive swarms.
Polyphagous pests are primarily agricultural pests that feed on economically important agricultural and horticultural crops of wide taxonomic diversity across the globe.
A highly polyphagous insect, desert locust eats flowers, fruits, seeds, leaves, stems, shoots as well as bark of a large number of species of plants including food crops, cash crops, trees, etc.

Muscles that help in movement of appendages are Phasic muscles.
Phasic muscles included the gluteus maximus, quadriceps, tibialis anterior, and rhomboid muscles.
Phasic means that muscle contains mostly quick-contraction, hi-power, short-duralibity fibers.

The only non-ester pyrethroid introduced in the year 1987 is Etofenprox.
Etofenprox is a non-ester pyrethroid insecticide with comparable toxicity and a similar mode of action to other pyrethroids.
Etofenprox is an insecticide that disturbs insect nervous systems following direct contact or ingestion, and which is active against a broad spectrum of pests.