Open AccessEffect of weather variables on whitefly (Bemisia tabaci Gennadius) population in development of potato apical leaf curl virus disease
Author(s) -
Manoj Kumar,
Anil Gupta
Publication year - 2016
Publication title -
journal of agrometeorology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.295
H-Index - 11
eISSN - 2583-2980
pISSN - 0972-1665
DOI - 10.54386/jam.v18i2.952
Subject(s) - whitefly , leaf curl , population , cultivar , veterinary medicine , biology , agronomy , relative humidity , horticulture , plant virus , medicine , virus , geography , virology , environmental health , meteorology
Potato apical leaf curl virus disease (PALCVD) is an important disease in early sown potato crop transmitted by whitefly (Bemisia tabaci). The studies pertaining to impact of weather variables on population of B. tabaci and PALCV disease incidence on seven potato cultivars (Kufri Pushkar, Kufri Bahar, Kufri Pukhraj, Kufri Badshah, Kufri Khyati, Kufri Surya and Kufri Sadabahar) were conductedduring 2012-13 and 2013-14. Results showed that the mean B. tabaci population was highest in the last week of October which varied from 24 to 85 white flies per plant. Thereafter, the population of B. tabaci decreased gradually with the fall in both maximum and minimum temperatures. Kufri Bahar variety had least B. tabaci population on all dates of observation. It was found that B. tabaci population (vector) was directly proportional to PALCVD. The pooled data showed that maximum temperature, minimum temperature, evening relative humidity and wind speed were the important contributing weather variables which could predict the vector populations by 57 per cent.