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Characteristics of insect pests infesting organically cultivated grains and soybeans in paddy-upland rotation and continuing upland fields
- 언어ENG
- URLhttps://db.koreascholar.com/Article/Detail/347148
The occurrence characteristics of major insect pests infesting organically cultivated maizes, millets, sorghums, and soybeans were surveyed from 2015 to 2017 in paddy-upland rotation and continuing upland fields. In grain fields, the main damage of maizes and sorghums was caused by Ostrinia furnaclais and Helicoverpa spp. The occurrence pattern of O. furnacalis was 3 times and that of Helicoverpa spp. was 3-4 times. In soybean fields, Riptortus clavatus was the most important, but the pest was not observed at geumhwajaerae and bongeui varieties. Interestingly, the more high the invasive rate of lepidopteran larvae was, the more low the yield of maizes and sorghums was. The surveyed results indicate that the focused management on lepidopteran larvae or hemipteran pests in maizes and sorghums or soybeans cultivated in paddy-upland rotation and continuing upland fields is an important strategy.
