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1
Surul poochi prefers which variety of Groundnut?
Discuss
Answer & Solution
Answer: Option B
Solution:
Surul poochi prefers Bunch type variety of Groundnut.
The varieties under cultivation fall into three habit groups. They are bunch (pish/Valencia), semi-spreading (Virginia bunch) and spreading (Virginia runner).
Bunch types are preferred where the rainy season is short and also for irrigated crops in rabi and summer seasons. Where the soils have high clay content and harvesting is a problem, bunch types are preferred.
2
Following chemical belongs to Juvenoids group
Discuss
Answer & Solution
Answer: Option C
Solution:
Fenoxycarb and Pyriproxyfen chemical belongs to Juvenoids group.
Fenoxycarb is non-neurotoxic and does not have the same mode of action as other carbamate insecticides. It prevents immature insects from reaching maturity by mimicking juvenile hormones.
Pyriproxyfen is a pesticide which is found to be effective against a variety of insects. It is a juvenile hormone analog and an insect growth regulator. It prevents larvae from developing into adulthood and thus rendering them unable to reproduce.
3
In paddy, the elongation of leaf sheath, when infested by gall fly (Orseolla oryzae) is due to a chemical known as
Discuss
Answer & Solution
Answer: Option C
Solution:
In paddy, the elongation of leaf sheath, when infested by gall fly (Orseolla oryzae) is due to a chemical known as Cecidogen.
The active substance, cecidogen secreted from the saliva of gall midge larva and the larval feeding on the meristematic tissue of terminal and auxiliary shoot apices in rice plants are responsible for gall formation (silver-shoot) in rice.
Orseolia oryzae, also called the Asian rice gall midge, is a species of small fly in the family Cecidomyiidae. It is a major insect pest of rice.
4
Biopesticide 'Naturalis' is a formulation of
Discuss
Answer & Solution
Answer: Option A
Solution:
Biopesticide 'Naturalis' is a formulation of Beauveria bassiana.
Naturalis-L is a bio-insecticide for the control of whitefly including the glasshouse whitefly.
Beauveria bassiana is a fungus that grows naturally in soils throughout the world and acts as a parasite on various arthropod species, causing white muscardine disease.
It is used as a biological insecticide to control several pests, including termites, thrips, whiteflies, aphids and various beetles.
5
A strong cephalic framework is the characteristic of this family
Discuss
Answer & Solution
Answer: Option A
Solution:
A strong cephalic framework is the characteristic of the Hoplolaimidae family.
Hoplolaimidae is a family of plant pathogenic nematodes. It has two subfamilies, Hoplolaiminae and Rotylenchulinae. Typically hoplolaimids are ecto or semi endoparasites of higher plants.
Members of this family are described as being a relatively large nematodes with a large heavily defined cephalic framework, including a large stylet with tulip shaped knobs. The nematode has a cuticle with 4 - 6 layers.
6
White grub beetles lay eggs
Discuss
Answer & Solution
Answer: Option B
Solution:
White grub beetles lay eggs singly in loose soil up to the depth of 10 cm.
May or June beetles seem to prefer grass sod as egg laying sites. The eggs hatch in a few weeks and the larvae feed on the roots of nearby host plants just a few inches below the soil line.
As winter approaches and soil temperatures drop, the true white grubs burrow deep into the ground below the frost line.
7
In storage, grains can be mix with
Discuss
Answer & Solution
Answer: Option C
Solution:
In storage, grains can be mixed with Malathion WP.
Malathion is a man-made organophosphate insecticide that is commonly used to control mosquitoes and a variety of insects that attack fruits, vegetables, landscaping plants and shrubs.
It can also be found in other pesticide products used indoors and on pets to control ticks and insects, such as fleas and ants.
8
Author of the book - Biochemistry of insects, is
Discuss
Answer & Solution
Answer: Option C
Solution:
Author of the book - Biochemistry of insects, is Morris Rockstein.
Biochemistry of Insects reviews the state of knowledge in insect biochemistry. The book begins by examining the function of carbohydrates in regulating and maintaining the life processes of insects. This is followed by separate chapters on the functional roles of lipids and proteins in insects; and protein synthesis in insects.
The book serves as an important reference source for the advanced student, the research scientist, and the professional entomologist seeking authoritative details of relevant areas of subject matter.
9
Anamorphosis is encountered the following insect order
Discuss
Answer & Solution
Answer: Option A
Solution:
Anamorphosis is encountered in the Protura insect order.
Anamorphosis refers to postembryonic development and moulting in Arthropoda that results in the addition of abdominal body segments, even after sexual maturity. Examples of this mode of development occur in proturans and millipedes.
Protura hatch with only 8 abdominal segments and add the remaining 3 in subsequent moults. These new segments arise behind the last abdominal segment but in front of the telson.
10
To which group does the lac insect belongs?
Discuss
Answer & Solution
Answer: Option C
Solution:
The lac insect belongs to group Homoptera.
Homoptera is a suborder of order Hemiptera that is considered by some taxonomists to be paraphyletic.
Lac is the resinous secretion of several species of lac insects, of which the most commonly cultivated is Kerria lacca. These are in the superfamily Coccoidea, the scale insects. This species is perhaps the most commercially important lac insect, being a main source of lac, a resin that can be refined into shellac and other products.