Agricultural Entomology MCQ Question and Answer | Agriculture MCQ Question

Bee venom is used for and released Curing pains at joints from acid glands.
Bee venom is secreted by a gland located in the abdominal cavity of the bees. It is an odorless and transparent acidic liquid that bees often use as a defense tool against predators. Honeybee venom (commercially known as Apitox or Apitoxin) is a combination of different compounds.
Bee venom seemed to prevent arthritis with the help of hormones called glucocorticoids. These hormones help regulate inflammation. The use of bee venom, with the help of glucocorticoids, might slow the progression of inflammatory arthritis.

Scarification and the presence of soil in pods with holes in groundnut under field conditions is a symptoms of damage due to Termites.
Termites penetrate and hollow out the tap root and stem thus killing the plant. Bore holes into pods and damage the seed.
It removes the soft corky tissue from between the veins of pods causing scarification, weakening the shells, and making them liable to entry and growth of Aspergillus flavus that produces aflotoxins.

The amino acid which leads to the formation of eye pigment ommochromes is Tyrosine and Tryptophan.
Ommochromes are synthesized from tryptophan, and in insects, these pigments may serve as a convenient way of removing excess tryptophan, an amino acid that can rise to toxic concentrations during metamorphic transitions.
They are responsible for yellow (oxidized xanthommatin) and red (reduced form) colours found in many invertebrates.

Damage in woolen garments is due to the enzyme Keratinase.
When loss in tensile strength is compared, it is found that keratinase causes higher loss in strength than papain. This is attributed to the fact that keratinase ruptures the disulphide linkages in wool, thereby causing higher loss in tensile strength.
If exposed to natural protein fibres such as wool or silk can cause irreversible damage, leading to loss of fabric strength, shape and poor colour fastness.

In ancient scripts, pipilika referred to Ants.
Sant Gyaneshwar (12 - 13^th century), who can be credited with inspiring bhakti movement in India, mentioned pipilika-pth. He propounded three ways of spiritual transmission-pipilika (ant), market (monkey) and vihangam (bird).
Saktavedha (penetration of energy) is ant-like. The movement of energy produces a sensation of crawling ants across body.

Petrobia latens is Brown wheat mite. It is its common name.
The brown wheat mite is a pest of small grains in most parts of the world, but may also damage onion, carrots and many other crops. The mites feed only on leaves, which results in leaf yellowing and mottling, unhealthy grain formation and wilting and dying of plants.
It is a vector of barley yellow streak mosaic virus, which has been reported to cause yield losses to spring-planted barley by over 30%. The virus also infects wheat, reducing yields. In addition, the mite may sometimes be a nuisance in houses.

Stylet knobs are tulip shaped in Haplolaimus.
The lip region is elevated and high arched the labial disc is usually distinct. The cephalic framework is strongly sclerotized.
The stylet is strong with rounded, indented, and sometimes anchor- or tulip-shaped knobs. The median bulb is strong and rounded.

Trade name of Tebufenozide is Mimic.
It is Mimic 700 WP Insecticide, and Mimic 240 SC Insecticide. Whereas, the chemical name is 4-ethylbenzoic acid-N'-tert-butyl-N'- (3,5-dimethyl-benzoyl) hydrazide (IUPAC) Benzoic acid, 3,5-dimethyl-1-(1,1-dimethylethyl)-2-(4-ethyl-benzoyl)hydrazide (CA).
It is an insecticide that acts as a molting hormone. It is an agonist of the ecdysone receptor that causes premature molting in larvae. It is primarily used against caterpillar pests.

Rotenone is a broad-spectrum contact and stomach poison that affect nerve and muscle cells in insects, derived from Roots.
Rotenone is an odorless, colorless, crystalline isoflavone used as a broad-spectrum insecticide, piscicide, and pesticide. Rotenone is produced by extraction from the roots and stems of several tropical and subtropical plant species, especially those belonging to the genera Lonchocarpus and Derris.
It is a commonly used pesticide and is also used in lakes and reservoirs to kill fish that are perceived as pests. Human deaths from rotenone poisoning are rare because its irritating action causes vomiting. Deliberate ingestion of rotenone can be fatal.

Anguina balsamophila forms galls on Leaf.
It is an ectoparasite that becomes endoparasitic invading inflorescence and developing seeds. It causes a disease called "ear-cockle", "gout" or seed gall on wheat and rye.
It does not infest oat, maize and sorghum. On wheat it causes stunted plants and distorted leaves. Seeds are transformed into galls which contain a dried mass of nematodes.