PDF(Pubmed)
Abstract：
Lobesia botrana (Lepidoptera: Tortricidae) and Cryptoblabes gnidiella (Lepidoptera: Pyralidae) represent a threat to wine production in Mediterranean countries. In recent years, the development of new formulations promoted the spread of pheromone-based mating disruption (MD) as an effective tool for the management of several insect pests in different agricultural contexts. In this study, we investigated the efficacy of an experimental dispenser designed for simultaneous MD of these two pests. The biodegradable double-tube dispenser (Isonet® L CG-BIOX235) was tested for two years in two Italian wine-growing sites, the first in Apulia (Southern Italy), and the second in Tuscany (Central Italy). Isonet® L CG-BIOX235 efficacy was evaluated by testing different doses (i.e., 300, 400, and 500 dispensers/ha), on different varieties (i.e., Aglianico, Syrah, and Viognier), and comparing it with an untreated control. The MD performed using this dispenser significantly reduced the infestation of both L. botrana (i.e., percentage of infested bunches and number of nests per bunch) and C. gnidiella compared to the untreated control, although the occurrence of the latter fluctuated throughout the two-year trials. Overall, although our results underline the possibility of combining the pheromones of the two pests in a single dispenser for their simultaneous MD, they also highlight the need for further studies on some aspects of C. gnidiella biology and consequently improve the MD efficacy against this species.
摘要：
Botrana（鳞翅目：Tortricidae）和Cryptoblabesgnidiella（鳞翅目：Pyralidae）对地中海国家的葡萄酒生产构成威胁。近年来,新配方的开发促进了基于信息素的交配破坏（MD）的传播，作为在不同农业环境中管理几种害虫的有效工具。在这项研究中,我们研究了为这两种害虫的同时MD设计的实验分配器的功效。可生物降解的双管分配器（Isonet®LCG-BIOX235）在两个意大利葡萄酒种植地点进行了两年的测试，第一个在普利亚（意大利南部），第二个在托斯卡纳（意大利中部）。通过测试不同剂量(即，300、400和500分配器/公顷)，在不同的品种上(即，Aglianico,西拉,和维奥尼)，并将其与未经处理的对照进行比较。使用该分配器进行的MD显着减少了两种肉毒杆菌的侵染（即，与未处理的对照相比，受感染的束的百分比和每束巢的数量）和C.gnidiella，尽管后者的发生率在整个两年的试验中波动。总的来说,尽管我们的结果强调了将两种害虫的信息素组合在单个分配器中以同时进行MD的可能性，他们还强调需要对C.gnidiella生物学的某些方面进行进一步研究，从而提高针对该物种的MD功效。
