C septempunctata

Cannibalism or intraspecific predation, where one species feeds on individuals of its own species, is a widespread phenomenon in most aphidophagous coccinellids. Laboratory studies were conducted on the cannibalistic behavior of various developmental stages of Coccinella septempunctata L. (Coleoptera: Coccinellidae) in the presence and absence of natural food, Acyrthosiphon pisum (Harris) (Hemiptera: Aphididae). In both the presence and absence of aphids, the eggs and 1st and 2nd instars of C.

7p dolomite36 30-12-2021 11 0   Download

Different natural enemies recorded from aphid colonies on rose included two coccinellid predators (Coccinella septempunctata and Cheilomenes sexmaculata), syrphid fly, spider (Oxyopes sp.) and chrysopid (Chrysoperla carnea). Among these, ladybird beetle, C. septempunctata followed by syrphid fly maggot was found to be the most abundant predator feeding on aphids colony.

5p gaocaolon9 22-12-2020 12 2   Download

Biology and feeding potential of Coccinella septempunctata was studied in the laboratory condition during 2013 in different months pertaining to different temperature regimes on Cowpea aphid, Aphis craccivora. During the cooler months of January and November, the life stages are prolonged and in the warmer months of March and May the life stages are shorter for the coccinellid. In January, when the mean temperature was 21.7ºC, the total developmental period from egg to adult stage, took 22.4±0.67 days whereas, in May, at 32.7ºC, the total developmental periods was 15.2±0.

6p nguaconbaynhay3 07-02-2020 8 0   Download

The investigations on Seasonal Abundance of thrips, Thrips tabaci Lindemen on Kharif onion and Its Management through Insecticides” were conducted at Horticulture farm, S.K.N. College of Agriculture, Jobner during Kharif, 2016. The incidence of thrips, T. tabaci on onion was commenced in the second week of August and reached to its peak in the second week of September. Whereas, the predator, Coccinella septempunctata Linn. was commenced in the second week of August and reached to maximum in the third week of September.

4p cothumenhmong1 08-12-2019 12 1   Download