设施菜田频振式杀虫灯诱杀效果及害虫扑灯节律初报

用频振式杀虫灯(灯高0.8 m和1.3 m)进行了5 d诱杀设施菜田害虫的试验,结果表明:诱杀的害虫涉及6目21科34种;灯高0.8 m诱杀害虫数量显著大于1.3 m的;20:00~21:00害虫扑灯最活跃;高1.3 m灯下益害比值(0.0809±0.0146)显著大于高0.8 m灯(0.0542±0.0081)。提出了评价杀虫灯诱杀昆虫能力的时间参数"扑灯中时间MTDL50"和"扑灯黄金时间GTDL61.8",高0.8 m灯下害虫扑灯中时间是21:06:25,黄金时间22:10:08;高1.3 m灯下害虫扑灯中时间是21:02:46,黄金时间22:07:54。

Preliminary report on the effect of frequency oscillation lamps on trapping insect pests and the insect pests 'rhythm of dashing at lamps in protected horticultural fields

A five-day experiment on trapping insect pests with frequency oscillation lamps(0.8 and 1.3 m high)was carried out in protected horticultural fields in Shanghai.The result showed that the trapped insect pests involved 34 species belonging to 21 families of 6 orders.The lamp 0.8 m high trapped significantly more pests than one 1.3 m high.The most active phase of pests dashing at the lamps was 20:00~21:00.The ratio of the beneficial insects to injurious insects trapped by the lamp 0.8 m high was significantly less than that by the lamp 1.3 m high.When the cumulative percentage of trapped pests reached 50%,the time was at 21:06:25 for the lamp 0.8 m high and at 21:02:46 for the lamp 1.3 m high.When the cumulative percentage of trapped pests reached 61.8%,the time was 22:10:08 for the lamp 0.8 m high and 22:07:54 for the lamp 1.3 m high.