Abstract
Studies was carried out to investigate population dynamics and the effect of abiotic factors on population dynamics of sucking insect pests of BT cotton whitefly (Bemisia tabaci) and jassid (Amrasca biguttula), under unprotected condition.
Highlights
WCotton (Gossypium hirsutum L.) contributes much to the economy of Pakistan [1]
There are different pest control tactics, in which varietal resistance is immense without insecticide application [5,6]
The maximum population (11.68) of whiteflies was recorded at highest temperature (45 oC) and lowest humidity (30%) (Figure 1)
Summary
WCotton (Gossypium hirsutum L.) contributes much to the economy of Pakistan [1]. It supports our textile industries. Important sucking insect pests are whitefly (Bemisia tabaci), jassid (Amrasca biguttula), thrips (Thrips tabaci) and aphid (Aphis gossypii) which are designated as key pests causing most of the damage to cotton crop. Cotton whitefly damages the plant by sucking cell sap resulting in 50% reduction in boll production [7] and act as a vector of leaf curl virus disease (CLCV) [8], which is threatening our cotton-based economy. It acts as a sole vector of more than 100 plant viruses, which cause diseases to many commercial crops in different parts of the world [9]. The knowledge about incidence of pest during the cropping season and its possible dynamics help in designing pest management strategies
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