Ten-year dynamics of seven major maize pests and recent insecticide resistance status of Ostrinia furnacalis in Henan Province, China
View Full Paper
Ask AI
Bookmark
Share
Key Points
This study aims to monitor the ten-year dynamics of maize pests and assess the insecticide resistance status of Ostrinia furnacalis in Henan Province, China.
Monitored major maize pests from 2015 to 2024 in Henan Province.
Conducted diet-overlay bioassays to establish susceptibility baselines for O. furnacalis larvae to six insecticides.
Evaluated resistance ratios using field populations collected in 2023 and 2024.
O. furnacalis remains the dominant maize pest, particularly during silking and grain-filling stages.
Susceptibility baseline established for O. furnacalis showed median LC50 values for various insecticides.
Resistance ratios were below 3; however, variability in susceptibility for some insecticides was noted.