Agrow is part of the Business Intelligence Division of Informa PLC

This site is operated by a business or businesses owned by Informa PLC and all copyright resides with them. Informa PLC’s registered office is 5 Howick Place, London SW1P 1WG. Registered in England and Wales. Number 8860726.

This copy is for your personal, non-commercial use. Please do not redistribute without permission.

Printed By


Natural refuges delay Bt resistance

Research by US and Chinese scientists shows that the development of resistance by cotton bollworms (Helicoverpa armigera) to Bt toxins produced by genetically modified insect-resistant cotton can be delayed by the presence of non-Bt crops on which the pest feeds. While farmers in the US plant specific non-Bt cotton refuges to delay resistance, this approach has not been necessary in China because of the presence of non-Bt crops such as maize, soybeans and peanuts in Bt cotton-growing areas.



What to read next




Ask The Analyst

Please fill in the form below to send over your enquiry or check the Ask The Analyst Page to find out more about the service

Your question has been successfully sent to the email address below and we will get back as soon as possible. my@email.address.

All fields are required.

Please make sure all fields are completed.

Please make sure you have filled out all fields

Please make sure you have filled out all fields

Please enter a valid e-mail address

Please enter a valid Phone Number

Ask your question to our analysts