论文部分内容阅读
1 发生及为害特点1 .1 发生情况 甘蔗二点螟 ( Chilotraca inluscatellusSnellen)属磷翅目螟蛾科。在本县一年发生五代 ,世代重叠 ,以老熟幼虫在蔗头、蔗茎和残茎上越冬。第一代发生期 4月上旬至 6月上旬 ;第二代为 5月中下旬至 7月中旬 ;第三代为 7月上中旬至 8月下旬 ;第?
1 Occurrence and damage characteristics 1.1 Occurrences The sugarcane two point borer (Chilotraca inlus catellusSnellen) is a Phorate Pyralidae family. Five generations occur in this county in one year, overlapping generations to overwintering mature larvae on sugar cane heads, cane stalks and stumps. The first generation occurred in early April to early June; the second generation of mid-to late May to mid-July; the third generation from July to mid-August to late August;