First, the occurrence and degree of harm: It is predicted that the third generation of corn borer will cause moderate to significant damage, leading to yield losses in affected fields. This generation is primarily expected to attack the ears of summer maize and the heart leaves, tassels, and stems of autumn corn. The estimated accumulated egg density in the field for the third generation is expected to exceed 1,500 eggs per hectare, with an insect infestation rate of over 30%. Additionally, the individual insect density in some areas could reach up to 40%. Farmers are strongly advised to take timely preventive measures to minimize crop damage. Second, the occurrence period and prevention window: The adult emergence of the first and third generations of corn borer is expected between July 25th and August 10th. The egg hatching period is anticipated from August 1st to August 20th. The recommended control periods are from August 1st to August 8th and again from August 13th to August 20th. These timeframes are critical for effective intervention to reduce pest populations before they cause extensive damage. Third, comprehensive prevention and control recommendations: 1. Field management: Focus on both summer and autumn corn crops. Regular monitoring of infestations should be conducted, especially in high-risk areas. 2. Pest control methods: Apply a mixture of powdered milk (50g), barrier agent (90ml), and helium eliminator (2 bags) diluted in 100 pounds of water. This solution should be sprayed on the upper leaves, heart leaves, and tassels of autumn corn. For summer corn, target the ears and surrounding leaves. This treatment can also help manage secondary pests such as aphids, cotton bollworms, armyworms, and other common pests. Ensure proper coverage and follow safety guidelines when applying pesticides. Marine Condiment,Shrimp Paste Marine Condiment,Crab Paste Marine Condiment,Marine Condiment Shrimp Paste Zhejiang Industrial Group Co., Ltd. , https://www.xingyeseafood.com