Record Details

Degree daybased model predicts pink bollworm phenology across geographical locations of subtropics and semi-arid tropics of India

KRISHI: Publication and Data Inventory Repository

View Archive Info
 
 
Field Value
 
Title Degree daybased model predicts pink bollworm phenology across geographical locations of subtropics and semi-arid tropics of India
Not Available
 
Creator Fand, V.S, Nagrare, B.B., Bal, S.K., Naik, V.C.B., Naikwadi, B.V., Mahule, Nandini, D., GokteNarkhedkar and Waghmare, V.N
 
Subject bollworm Pectinophora gossypiella (Saunders)
 
Description Not Available
There is a global concern about the effects of climate change driven shifts in species phenology on crop pests. Using geographically and temporally extensive data set of moth trap catches and temperatures across the cotton growing states of India, we predicted the phenology of cotton pink bollworm Pectinophora gossypiella (Saunders). Our approach was centered on growing degree days (GDD), a measure of thermal accumulation that provides a mechanistic link between climate change and species' phenology. The phenology change was predicted by calculating absolute error associated with DD and ordinal date, an alternative predictor of phenology, for peak moth abundance. Our results show that GDD outperformed the ordinal dates in predicting peak moth abundance in 6 out of 10 selected locations. Using established thresholds of 13.0/34.0 °C, mean DD accumulated between the consecutive moth peaks across different years were estimated at 504.05 ± 4.84. Seven generations were determined for pink bollworm in a cropping season, the length of which varied between 35 and 73 days in response to temperature. Pink bollworm population reached its peak during third generation which can be the target for management actions. The study provides essential information for developing pink bollworm management strategies under climate change.
Not Available
 
Date 2023-02-14T03:45:57Z
2023-02-14T03:45:57Z
2020-01-01
 
Type Research Paper
 
Identifier Not Available
Not Available
http://krishi.icar.gov.in/jspui/handle/123456789/76151
 
Language English
 
Relation Not Available;
 
Publisher Not Available