青森県におけるヒメトビウンカの周年経過
スポンサーリンク
概要
- 論文の詳細を見る
The small brown planthoppers, <I>Laodelphax striatellus</I> FALLEN, were collected in paddy fields and in these surroundings in order to elucidate the life cycle in Aomori prefecture. It was inferred from the larval head width that most larvae hibernated at the stage of the 4th instar. They resumed their development in spring and emerged as adults in early May. After the emergence, adults were abundant in late July, August and September, particularly most abundant in late August. It seemed, therefore, that the species produced. four generations a year in Aomori.
- 北日本病害虫研究会の論文
北日本病害虫研究会 | 論文
- 露地夏秋キュウリにおけるホモプシス根腐病の発生
- チョウセンニンジンに発生した茎腐れ症状
- 福島県で発生したダイコン根こぶ病について
- 農業におけるバイオテクノロジ-と作物保護
- ブドウ根頭がんしゅ病菌北海道分離株のPCR法による検出