スジキリヨトウに対する芝草類の耐虫性の差異

概要

論文の詳細を見る
Eighteen species and cultivars of warm-season and 14 of cool-season turfgrasses were evaluated for resistance to lawn cutworm, Spodoptera depravata (Butler) (Lepidoptera: Noctuidae), larvae in the laboratory. Larvae fed on cool-season turfgrass leaves showed higher survival rates than those fed on warm-season turfgrass leaves. All larvae fed on leaves of Eremochloa ophiuroides and Zoysiagrass 'Emerald' died within 6 and 8th days, respectively. All larvae fed on warm-season turfgrass leaves exhibited lower weights (19.9-101.2 mg) as compared to those fed on cool-season turfgrass leaves (193.6-273.6mg) during a 10 day evaluation. Larval development period was longer when fed on warm-season turfgrass leaves (21.5-31.9 days) than on cool-season turfgrass leaves (17.0-19.5 days). Extended developmental periods were observed in cutworm larvae especially on leaves of Hybrid Zoysia 'Miyako', Z. japonica 'Himeno', native, Z. matrella, Cynodon dactylon 'Sahara', and Stenotaphrum secundatum.
日本応用動物昆虫学会の論文
2003-11-25