Razzak Mohammad A, Seal Dakshina R, Stansly Philip A, Liburd Oscar E, Schaffer Bruce
Tropical Research and Education Center, University of Florida, Homestead, FL.
South-West Florida Research and Education Center, University of Florida, Immokalee, FL.
Environ Entomol. 2019 Apr 3;48(2):434-443. doi: 10.1093/ee/nvz010.
Melon thrips, Thrips palmi Karny (Thysanoptera: Thripidae), is a serious pest of vegetable, ornamental, and fruit crops. As a potential component of an integrated pest management (IPM) program, different plastic mulches including white-on-black, black-on-white, black-on-black, two metalized ultraviolet (UV)-reflective mulches, and a no mulch control were evaluated for managing T. palmi on six field-grown vegetable crops (eggplant, cucumber, squash, snap bean, Jalapeno pepper, and tomato) during the Fall of 2015 and 2016. Metalized reflective mulch significantly reduced the number of T. palmi in all vegetable crops compared with the other treatments. The highest numbers of T. palmi were observed on the white-on-black mulch and control treatments. The numbers of adults and larvae were highest on eggplant followed by cucumber, snap bean, squash, and Jalapeno pepper. The lowest numbers of T. palmi were observed on tomato plants. This study indicated that growing vegetable crops on metalized mulch is an effective method of reducing T. palmi populations in vegetable crops and should be considered in IPM programs for this insect species.
西花蓟马，棕榈蓟马（缨翅目：蓟马科），是蔬菜、观赏植物和水果作物的一种严重害虫。作为综合虫害管理（IPM）计划的一个潜在组成部分，在2015年和2016年秋季，对包括黑白相间、白黑相间、全黑、两种镀金属紫外线（UV）反光地膜以及不覆盖地膜对照在内的不同塑料地膜进行了评估，以控制六种田间种植蔬菜作物（茄子、黄瓜、南瓜、菜豆、墨西哥胡椒和番茄）上的棕榈蓟马。与其他处理相比，镀金属反光地膜显著减少了所有蔬菜作物上的棕榈蓟马数量。在黑白相间地膜和对照处理上观察到的棕榈蓟马数量最多。成虫和幼虫数量在茄子上最多，其次是黄瓜、菜豆、南瓜和墨西哥胡椒。在番茄植株上观察到的棕榈蓟马数量最少。这项研究表明，在镀金属地膜上种植蔬菜作物是减少蔬菜作物上棕榈蓟马种群数量的一种有效方法，在针对这种昆虫的IPM计划中应予以考虑。
