author(s)
Prashant K Natikar, RA Balikai and DN Kambrekar

abstract
Prediction models for insect pests of potato and their natural enemies was studied during kharif 2016 and 2017 at AICRP on Potato, MARS, Dharwad in relation to the prevailing as well as the previous (antecedent) four weeks (one/two/three/four lead weeks) weather. The correlation and regression studies between insect pests, natural enemies and weather parameters during kharif season indicated that all the weather factors under consideration had no significant role on population fluctuations of insect pests and natural enemies except mites and spiders. Forecasting model for mites depicted that maximum temperature at one week lead time had negative and significant association with the incidence of mites population. Based on prediction model [Y = 77.81 - 3.205X₃ (maximum temperature)] we can forecast mite population at one week before incidence upto 35.50 per cent accuracy.