사과굴나방 및 그기생충류(寄生蟲類)의 발생소장(發生消長)과 가해엽위(加害葉位) Seasonal Occurrences of the Apple Leaf Miner, Phyllonorycter ringoniella (Matsumura) and Its Parasites and Damaging Leaf Position원문보기
Apple leaf miner(ALM), Phyllonorycter ringoniella(Matsumura), occurs $4{\sim}5$ generations a year in Suweon; adult emergence peaks being in mid April, early June, early July, mid August, and mid September with the highest one in the 4th generation. Numbers of days required to complete th...
Apple leaf miner(ALM), Phyllonorycter ringoniella(Matsumura), occurs $4{\sim}5$ generations a year in Suweon; adult emergence peaks being in mid April, early June, early July, mid August, and mid September with the highest one in the 4th generation. Numbers of days required to complete the development(egg to adult emergence) were different with oviposited dates; 43days for late May, $32{\sim}37$ days for June to July, and 39days for early August. ALM larvae oviposited after late August did not emerge and went into diapause. Sites of the infested leaf on the shoot seemed to be somewhat different with the ALM generations; the preferred leaf sites being the 1st-6th leaf for the 1st, the 4th-9th for the 2nd, the 4th-18th for the 3rd or 4th, and the terminal leaves of the first growth shoot or the leaves of the secondary shoot for the 5th generation. Parasites of three families emerged from the mines of ALM in Suweon. The encyrtid (Holcothorax testaceipes Ratzelburg) occurs 4 generations and the eulophids 5 generations a year. A small number of the braconid(Apanteles sp.) occcrred only in September.
Apple leaf miner(ALM), Phyllonorycter ringoniella(Matsumura), occurs $4{\sim}5$ generations a year in Suweon; adult emergence peaks being in mid April, early June, early July, mid August, and mid September with the highest one in the 4th generation. Numbers of days required to complete the development(egg to adult emergence) were different with oviposited dates; 43days for late May, $32{\sim}37$ days for June to July, and 39days for early August. ALM larvae oviposited after late August did not emerge and went into diapause. Sites of the infested leaf on the shoot seemed to be somewhat different with the ALM generations; the preferred leaf sites being the 1st-6th leaf for the 1st, the 4th-9th for the 2nd, the 4th-18th for the 3rd or 4th, and the terminal leaves of the first growth shoot or the leaves of the secondary shoot for the 5th generation. Parasites of three families emerged from the mines of ALM in Suweon. The encyrtid (Holcothorax testaceipes Ratzelburg) occurs 4 generations and the eulophids 5 generations a year. A small number of the braconid(Apanteles sp.) occcrred only in September.
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