Population dynamics of insect pests in fenugreek (Trigonella foenum-graecum L.) Mishra Shreya, Pandey Shalini* Agricultural Research Station, Agriculture University, Mandor, Jodhpur-342 304 (Rajasthan) *Corresponding author’s Email: pandeyshalini80@gmail.com
Online Published on 17 May, 2023. Abstract A field experiment was carried out to study the population dynamics of insect pests of fenugreek at Research Farm, Agricultural Research Station, Mandor during Rabi, 2021-22. Infestation of aphid, Aphis craccivora and leaf miner, Liriomyza congesta started from 1st Standard Meteorological Week (SMW) whereas weevil, Hypera postica infestation started from 5th SMW on fenugreek crop.The population of leaf miner (Liriomyza congesta), weevil (Hypera postica) and aphid (Aphis craccivora) reached to peakin the 6th, 9th and 5th SMW, respectivelyonfenugreek. Thecorrelation coefficient showed negative significant relationship between weevil population and rainfall and sunshine hours (r = -0.612 and r = -0.676, respectively). The minimum temperature had negative significant correlation (r = -0.553) whereas maximum relative humidity had positive significant correlation (r = 0.534) with aphid population. Top Keywords Trigonella foenum-graecum, Population dynamics, Weather parameters, Aphis craccivora, Liriomyza congesta, Hypera postica, Coccinellids. Top |