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Long Term Monitoring Showed That Planting Insect Resistant Pgenic Cotton Is Beneficial To The Ecological Environment.

2010/7/3 15:09:00 38

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Approved by the agricultural genetically modified organisms safety committee, the Ministry of Agriculture approved for the first time in 1997.

Transgene

Insect resistant cotton is commercially cultivated.

Since then, Chinese scientists have been tracking and monitoring the effects of different cotton fields on the farmland ecology and natural environment after planting a large area of cotton in different cotton fields for more than 10 years.

(1) effectively controlling the harm of cotton bollworm and pink bollworm across the country.

Cotton bollworm and pink bollworm are the main pests of cotton production in China. In the past, cotton bollworm control needed 10 to 20 times a year. A large number of drugs led to a series of problems, such as increasing the cost of farmers, reducing profits, poisoning livestock, livestock, poisoning, environmental pollution, natural enemies, and insecticide resistance.

After planting pgenic insect resistant cotton, the variety itself has good insect resistance effect. Generally only 2 to 5 times of drug can effectively control these two pests, not only the amount of pesticide on cotton is reduced by more than 70%, but also the number of cotton / corn / peanut cotton bollworm is also significantly reduced.

(two) provide good environmental conditions for natural enemies and beneficial insects.

Farmland organisms

Diversity is more abundant.

Due to the reduction of pesticide damage to natural enemies and beneficial insects, the number of natural enemies and beneficial insects of ladybirds / flies / spiders and parasitoids has increased from several times to several hundred times, and the biodiversity of insect resistant cotton fields and their surrounding areas is more diverse, which is conducive to the protection of farmland environment.

(three) integrated pest management has been developed.

Treatment technology

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With the effective control of major pests and the significant reduction of pesticide consumption, the number of secondary pest populations has changed, mainly due to the decrease of aphids and the increase of the number of bug bugs.

Around the cultivation and management of pest resistant cotton, timely elimination of weeds and conversion to main hosts and rational use of low toxic pesticides can ensure a good harvest of cotton.