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Vol. 11, Special Issue 5 (2022)

Population dynamics and their correlation coefficient between sucking pests and their natural enemies on brinjal crop in semi-arid conditions of Rajasthan

Author(s):
Kamlesh Kumar and Ashok Sharma
Abstract:
Brinjal was a stable vegetable in our diet since ancient time and being grown in all cropping seasons round the year and is also known as poor man’s crop. Aphids, jassids, whiteflies, lace wing bugs and mites were cosmopolitan in distribution and were found wherever brinjal is grown. Population of these pests are often seen on tender parts of the plant, particularly on leaves. The nymphs and adults of these pests suck the cell sap from leaves and tender parts of plants which leads to yellowing, deformation, wilting and ultimately drying of the affected parts. Sucking pests also act as a vector of different diseases in brinjal crop such as little leaf by jassids and shooty mould by aphids and whiteflies. Pests were recorded from transplanting to harvest of the crop. Observations on population of sucking pests were recorded on three leaves one each from top, middle and bottom canopy of the five plants selected randomly in each replication. During the population dynamics studies of jassid, A. biguttula biguttula whitefly, B. tabaci and mite, T. cinnabarinus were observed as major sucking pests. The peak incidence of jassid, whitefly on brinjal were observed in (41th SMW) 4th week of September and mite and predators population peaked in the (44th SMW) 3rd week of October.
Pages: 1689-1693  |  277 Views  111 Downloads
How to cite this article:
Kamlesh Kumar and Ashok Sharma. Population dynamics and their correlation coefficient between sucking pests and their natural enemies on brinjal crop in semi-arid conditions of Rajasthan. The Pharma Innovation Journal. 2022; 11(5S): 1689-1693.

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