Agricultural Entomology MCQ Question and Answer | Agriculture MCQ Question

Uricose gland is present in male cockroach insects.
The occurrence of uricose glands in the male reproductive system appears to be unique for the Blattaria.
These glands in male cockroach are reproductive structures but it also helps in excretion. These glands are tubular structure emerging from utricular gland.
It stores uric acid and discharges it over the spermatophore during copulation.

Kdr gene in houseflies is present in chromosome no. 3.
Knockdown resistance (kdr) is a well-characterized mechanism of resistance to pyrethroid insecticides in many insect species and is caused by point mutations of the pyrethroid target site the para-type sodium channel.
The term knockdown resistance (kdr) describes cases in which insects have become resistant to DDT or pyrethroids through a reduced sensitivity in the nervous system.

Accessory gland of mesodermal origin in the male reproductive system of cockroach are Mesadenia.
The male accessory glands of insects are abdominal gland systems associated with the reproductive system and are commonly called mesadenia if they arise from the vasa deferentia, or ectadenia if they are associated with the ejaculatory sac. These glands are both mesodermal and ectodermal in many insect orders.
The male accessory glands comprise one pair of mesodermal glands (mesadenia) and six pairs of ectodermal glands (ectadenia). The mesadenia consist of a mono-layered elongated columnar epithelium, the cells of which are highly microvillated and extrude secretory granules using merocrine mechanisms.

A. Bee ⇔ Chewing type
The mouthparts of the honey bee belong to the chewing–lapping type, comprising the glossa, galeae and vestigial labial palp, and they aid the bee in chewing pollen and lapping nectar.
B. Bug ⇔ Piercing and sucking
Several insect orders (or more precisely families within them) have mouthparts that pierce food items to enable the sucking of internal fluids.
C. Butterfly ⇔ Siphoning mouth part
This section deals only with insects that feed by sucking fluids, as a rule without piercing their food first, and without sponging or licking. Typical examples are adult moths and butterflies.
D. House fly ⇔ Sponging mouth part is not correctly matched.
The housefly is a typical sponging insect. The labellum's surface is covered by minute food channels, formed by the interlocking elongate hypopharynx and epipharynx, forming a proboscis used to channel liquid food to the oesophagus.

Destructive Insects Pest Act (DIPA) was passed in 1914.
Destructive Insects and Pests Act, of 1914 is an act to prevent the introduction into India and the transport from one State to another of any insect, fungus, or another pest, which is or may be destructive to crops.
This Act grants the Central Government may the power to levy and collect such fees at such rates and in such manner as may be specified in the 1914 Act for making an application for a permit to import, or for making inspection, fumigation, disinfection, disinfestations or supervision of, any article.

Agrotis spp. belong to the family Noctuidae.
Cutworms (Agrotis spp.) are cosmopolitan and polyphagous pests distributed throughout the world, which belong to the family Noctuidae, and about 26 species are found associated with agriculturally important crops in India and some other countries of world.
They are medium-sized, stoutly built moths. They are nocturnal and attracted to light. Labial palp is well developed. Crochets on the larval prolegs are all of one size and arranged in a semi-circle.

The chemical compound produced by millipedes for their defense is Hydrogen cyanide.
Their primary defense mechanisms consist of coiling up and secreting toxins from the sides of their body.
Within these secretions, a variety of irritating chemicals have been identified, some of which include hydrogen cyanide, hydrochloric acid, hydroquinones, benzoquinones, alkaloids, and phenols.

The first abdominal segment when fused with the metathorax in bees is known as Propodeum.
Propodeum is part of the thorax of a hymenopteran that lies immediately over and partly surrounding the insertion of the petiole of the abdomen and represents a basal abdominal segment that has become fused with the thorax.
The first abdominal segment is called propodeum. It is fused with metathorax. The first pair of abdominal spiracles are located in the propodeum. The second segment is known as pedicel which connects the thorax and abdomen.

Biocontrol agent for lantana weed (Lantana camera) is Ophiomyia lantanae.
Lantana camara (common lantana) is a species of flowering plant within the verbena family (Verbenaceae), native to the American tropics. Insects and other biocontrol agents have been implemented with varying degrees of success in an attempt to control L. camara.
Ophiomyia lantanae is a fly native to the Americas, from the southern US to Brazil but had been introduced also to Australia as a biological control agent of Lantana camara in 1914. This fly feeds on flowers and fruits of Lantana camara.