RSS
   

003l
006l
008l
009l
010l
014l
015l
Cattles1
padytl
pestaffectedredgram1
Poultry1l
Sheep1l
Soil erosionl

Prediction of pest scenarios of Spodoptera litura Fab. in peanut growing areas of India during future climate

A study were made to predict pest scenario of tobacco caterpillar, Spodoptera litura. Fab.at four peanut growing locations of India viz., Dharwad (15° 28’ N, 75° 2’ E), Raichur (16°12’ N, 77° 25’ E), Junagadh (21° 31’ N, 70° 36’E ) and Jalgaon (21° 5’ N, 75° 40’ E) using A1B PRECIS which provides GCM Model of future data on daily maximum (T.max), minimum (T.min) air temperatures. A three step methodology involving (i) Collection of historical data on incidence of insect pests and available temperatures for the four peanut growing locations (ii) Adoption of regression analysis technique for modeling and analyzing relationship between pest trap data (dependent variable) and temperature data (independent variables) and (iii) Prediction of pest scenarios. The future temperature data were classified into three decadal periods viz., I (2021-2030), II (2031-2040) and III (2041-2050). It is predicted that the pheromone trap (PT) moth catch would be higher during all three future decades (172-233) than present period (93.46) at all the locations, with significant year wise variations. These results suggest that the incidence of S. litura is likely to be higher in future climate scenarios.


Predicted pest scenario of S. litura during three future climate change periods
at four peanut growing locations

   

News

   
©Central Research Institute for Dryland Agriculture, All Rights Reserved