Corn earworms plague reaches Paraguay
The insect plague that devastated Brazilian cotton and soybean crops this year is spreading to neighbouring Paraguay. Four of the country's states have registered appearances of corn earworms (Helicoverpa armigera), the plant health service, the Senave, reports. The detections were reported just as soybean planting got under way. The Senave has issued an emergency alert. It has provided growers with recommendations, emphasising the need to monitor fields weekly, and to apply "the correct dose of biological and chemical" products with rotation of active ingredients applied, along with rotation of crops and the implementation of a 20% refuge area. The crops covered in the emergency include canola, cotton, maize, soybeans and forage. Over $1,000 million of damage was caused in last season's cotton and soybean crops in two Brazilian states (Agrow No 673, p 19).