مقال بحثي وصول مفتوح
Distribution Pattern of Sweet Potato Whitefly Bemisia tabaci (Gennadius) on Tomato Plants
A field experiment was conducted to study the intra plant distribution and temporal dispersion patterns of whitetly (Bemisia tabaci Gennadius) eggs and nymphs on tomato plants to establish a sampling method which would give accurate estimates of the population size. From the third week to the ninth week after transplan …