Agricultural Entomology MCQ Question and Answer | Agriculture MCQ Question

The process of leaving off the colony by the queen is known as Swarming.
Swarming is the process by which a new honey bee colony is formed when the original colony replaces the old Queen.
Swarming is the natural method honeybee colonies use for multiplying their colonies. They leave the hive with about half of the worker bees and as much honey as they can carry.

Karl Von Frisch scientist studied the method of communication in honey bees.
The Austrian scientist Karl von Frisch was awarded the Nobel Prize for his research on the honey bee waggle dance in 1973.
He recognized how this unique form of communication allowed bees to share information on the location of food sources with nest-mates.

Pentachlorophenol repellent is used against termites.
Pentachlorophenol is a chlorophenol that is phenol substituted by 5 chloro groups. It has a role as a human xenobiotic metabolite. Pentachlorophenol (PCP) and its sodium salt were once widely used as a fungicide, bactericide, herbicide, mollusicide, algaecide and insecticide.
Pentachlorophenol can be applied to soil to control termites, as a termiticide it has been limited to specific situations, such as direct application to termite-infested wood structures that cannot be easily replaced.

Didelphic, prodelphic ovaries are found in Meloidogyne, Heterodera and Globodera.
In monodelphic conditions, the ovary is always, anteriorly directed, i.e Prodelphic. In the case of didelphic ovaries, if both the ovaries are anteriorly directed and vulva is terminal in position then the condition is known as didelphic prodelphic as found in the case of Meloidogyne, Heterodera and Globodera.

The sterile insect technique was first time proposed in the year 1937 by Knipling.
The sterile insect technique was conceived by Knipling in 1937 and first developed for use against the screwworm, Cochliomyia hominivorax (Coquerel), a deadly parasite of warm-blooded animals and man in the Americas.
It is a method of biological insect control, whereby overwhelming numbers of sterile insects are released into the wild. The released insects are preferably male, as this is more cost-effective and the females may in some situations cause damage by laying eggs in the crop, or, in the case of mosquitoes, taking blood from humans.

Minifumes (ethylene bromide) are tablets manufactured by CFTRI.
Ethylene bromide (C₂H₄Br₂), also called ethylene dibromide or 1,2-dibromoethane, is a colourless, sweet-smelling, nonflammable, toxic liquid belonging to the family of organohalogen compounds.
Ethylene bromide is prepared by the reaction of ethylene with bromine. It is denser than and very slightly soluble in water; however, it is soluble in many organic liquids.

Central plant protection training institute is located in Hyderabad.
The central plant protection institute was established in 1966 under the directorate of plant protection, Quarantine and storage to create qualified pest management personnel in central and state governments.
CIPMC, Hyderabad has been established in the State of Telangana as a subordinate office under Directorate of Plant Protection, Quarantine & Storage, Department of Agriculture, Government of India.

Chagas disease is transmitted by Triatoma sp and Rhodnius prolixus.
Chagas disease is named after the Brazilian physician Carlos Chagas, who discovered the disease in 1909. It is caused by the parasite Trypanosoma cruzi, which is transmitted to animals and people by insect vectors.
Triatoma dimidiata and Rhodnius prolixus are major vectors of Chagas disease in Central and South America, these vectors were more attracted by heat or CO₂ alone than by selected chemicals.

Vitellogenesis is regulated by JH hormone.
Insect vitellogenesis is governed by two critical hormones, the sesquiterpenoid juvenile hormone (JH) and the ecdysteriod 20-hydroxyecdysone (20E).
JH acts as the principal gonadotropic hormone to stimulate vitellogenesis in basal hemimetabolous and most holometabolous insects. Juvenile hormones are secreted by a pair of endocrine glands behind the brain called the corpora allata. JHs are also important for the production of eggs in female insects.

Bacillus thuringiensis was discovered by S. Ishiwata.
Ishiwata named the bacterium Bacillus sotto. A few years thereafter, in 1911, German scientist Ernst Berliner isolated a related strain from dead Mediterranean flour moth larvae he found in a flour mill in the German state of Thuringia. He appropriately named the organism Bacillus thuringiensis.