Agricultural Entomology - Study Mode
[#456] Broca trap is used for
Correct Answer
(C) Coffee berry borer
Explanation
Solution: Brocap trap is used for Coffee berry borer. The BROCAP trap combined with additional pest management can increase yield by up to 12%. The particularity of this pest is that the female beetle bores into the coffee berries, lay eggs and then the entire life cycle of the larvae occur within the berry, which can cause entire harvests to be destroyed.
[#457] In rice, clipping of tip seedlings before transplanting is done to eliminate egg masses of
Correct Answer
(A) Yellow stem borer
Explanation
Solution: In rice, clipping of tip seedlings before transplanting is done to eliminate egg masses of Yellow stem borer. Clipping of rice tips to reduce the infestation of stem borer and alley ways for BPH in paddy. Sri. J. Vijay demonstrated cutting the tips of paddy seedlings before transplanting, egg masses laid by paddy stem borer are destroyed and reduce the infestation of stem borer ahead.
[#458] Woolly aphis is the pest of
Correct Answer
(C) Peach
Explanation
Solution: Woolly aphid is the pest of Peach. Woolly apple aphid is a serious pest of peaches and apples, particularly young trees. Colonies form at wound sites on trunks, limbs, and twigs, where they feed on tender bark. Pruning and hail damage can create wound sites for attack by this pest. Egg-laying wounds by the periodical cicada are ideal sites for infestation.
[#459] Importance of bee space was discovered by
Correct Answer
(B) Langstroth
Explanation
Solution: Importance of bee space was discovered by Langstroth. The "Bee Space" is the gap between and around frames, which the bees will tolerate without trying to enlarge or block off thereby reducing the tendency for bees to stick the frames together or tear down the comb. L. L. Langstroth discovered the principle of bee space in 1851 in the U.S.A. This space permits free passage for worker bees and is too small to build a comb by bees or too large for depositing bee glue i.e. propolis.
[#460] In collembolans, eggs are
Correct Answer
(A) Isolecithal and holoblastic
Explanation
Solution: In collembolans, eggs are Isolecithal and holoblastic. Springtails (Collembola) form the largest of the three lineages of modern hexapods that are no longer considered insects. Collembolans are omnivorous, free-living organisms that prefer moist conditions. They do not directly engage in the decomposition of organic matter, but contribute to it indirectly through the fragmentation of organic matter and the control of soil microbial communities. These eggs have sparse, equally spaced yolk and are thus isolecithal (“equal yolk”). In these species, cleavage is holoblastic (holos, “complete”), meaning that the cleavage furrow extends through the entire egg.