Relationship Between Weather Factors and
Sucking Pests of Okra in Mizoram
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Author:T. Boopathi and K.A. Pathak
p-ISSN:0024-9602, e-ISSN:2582-5321, Vol:99, Issue:jan-mar
DOI: https://doi.org/10.29321/MAJ.10.100031
Abstract
The population dynamics of Aphis gossypii (Glover), Dysdercus koenigii Fabr. and Amrasca
biguttula biguttula (Ishida) with respect to meteorological parameters on okra was conducted
at the experimental farm, ICAR Research Complex for NEH Region, Mizoram Centre, Kolasib,
Mizoram. The results revealed that a decrease in minimum temperature and minimum relative
humidity and maximum relative humidity and increase in maximum temperature by 30 to 40%
favour the population buildup of A. gossypii. Whereas an increase in temperature coupled
with dry weather and decreased relative humidity favoured the build-up of A. biguttula
biguttula. Peak population of D. koenigii was recorded as soon as maximum and minimum
temperature was below 24 and 32 0 C, respectively and minimum relative humidity and
maximum relative humidity crossed 58 and 81%, respectively.
Key words : Okra, Aphis gossypii, Amrasca biguttula biguttula, Dysdercus koenigii, Weather parameters