How does Bt cotton perform in rainfed areas?

Suppression of cotton bollworm in multiple crops in China in areas with Bt toxin-containing cotton.

Transgenic cotton that has been engineered to produce insecticidal toxins from Bacillus thuringiensis (Bt) and so to resist the pest cotton bollworm (Helicoverpa armigera) has been widely planted in Asia. Analysis of the population dynamics of H. armigera from 1992 to 2007 in China indicated that a marked decrease in regional outbreaks of this pest in multiple crops was associated with the plan...

Bt COTTON IN INDIA

How Does Primary Dairy Cooperative Perform? A Study of Physical and Financial Performance Variables in West Bengal State in India

This paper attempts to examine the physical and financial performance of some primary dairy co-operatives in west Bengal state in Indian context. The study suggests that financial performance indicators dominate over physical ones, and all the dominating variables have long term positive impact on primary milk producers’ co-operative societies (PMPCSs). Also, the significant impact of financial...

The Halo Effect: Suppression of Pink Bollworm on Non-Bt Cotton by Bt Cotton in China

In some previously reported cases, transgenic crops producing insecticidal proteins from Bacillus thuringiensis (Bt) have suppressed insect pests not only in fields planted with such crops, but also regionally on host plants that do not produce Bt toxins. Here we used 16 years of field data to determine if Bt cotton caused this "halo effect" against pink bollworm (Pectinophora gossypiella) in s...

Hybridizing transgenic Bt cotton with non-Bt cotton counters resistance in pink bollworm.

Extensive cultivation of crops genetically engineered to produce insecticidal proteins from the bacterium Bacillus thuringiensis (Bt) has suppressed some major pests, reduced insecticide sprays, enhanced pest control by natural enemies, and increased grower profits. However, these benefits are being eroded by evolution of resistance in pests. We report a strategy for combating resistance by cro...