Age estimation technique for field collected grubs of cashew stem and root borer (Plocaederusferrugineus Linn.)
2010
Raviprasad, T.N. | Shivarama Bhat, P.
The age estimation technique for cashew stem and root borers (CSRB) was evaluated using prothoracic shield (PIS) width and body length as indicator. The age grouping of field collected CSRB grubs was standardized using PIS width. Based on the backdating of the field collected grubs, it was observed that the maximum egg laying had occurred during December to June. The maximum percentage of younger CSRB grubs (96.89) out of the total young grubs encountered in a year were found to occur between February to June. This period coincides with the nut collection period in most of the cashew growing tracts. Hence, this will be the optimal period to adopt grub removal, for reducing bark damage to infested trees and minimizing subsequent reinfestation by this pest.
اظهر المزيد [+] اقل [-]الكلمات المفتاحية الخاصة بالمكنز الزراعي (أجروفوك)
المعلومات البيبليوغرافية
تم تزويد هذا السجل من قبل Indian Council of Agricultural Research