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首页> 外文期刊>Journal of Insect Science >Field and laboratory responses of male leaf roller moths, Choristoneura rosaceana and Pandemis pyrusana, to pheromone concentrations in an attracticide paste formulation
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Field and laboratory responses of male leaf roller moths, Choristoneura rosaceana and Pandemis pyrusana, to pheromone concentrations in an attracticide paste formulation

机译:田间和雄性卷叶蛾,Choristoneura rosaceana和Pandemis pyrusana对诱杀剂糊剂中信息素浓度的响应

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Male leafroller moths, Choristoneura rosaceana (Harris) (Lepidoptera: Tortricidae) and Pandemis pyrusana (Kearfott), were evaluated for responses to a paste formulation loaded with a range of concentrations of the two species' pheromone blends and evaluated in a laboratory wind tunnel and in the field. Response criteria were flight, flight towards the pheromone source, and contact with the pheromone source for the wind tunnel assays, and capture of moths in traps for the field tests. In the wind tunnel and field, responses of males of both species to the paste generally increased as the pheromone concentration in the paste was increased. There was little response by either species to paste with less than 0.16% pheromone. The relationship between pheromone concentration and response for P. pyrusana was linear and for C. rosaceana was sinusoidal over the range of pheromone concentrations tested. These patterns were seen both in the wind tunnel and in the field. Initial release rates from the paste of (Z)-11-tetradecenyl acetate, the main component of the pheromone blends of both species was 3.6–3.8 ng/h. Inhibitory thresholds for responses were not reached for either species, using pheromone concentrations as high as 16%, in either the wind tunnel or the field. For both species, response of males to rubber septa with one mg pheromone loads was similar to the response to the paste with pheromone at concentrations greater than 3–4%. For C. rosaceana, rates of contact with the paste in the wind tunnel were statistically similar to rates of contact in response to conspecific females, with paste pheromone concentrations above 1.6%. Response rates for males of P. pyrusana were significantly lower to the paste than to conspecific females at all paste pheromone concentrations tested. Overall, the optimum pheromone concentration in the paste for moth attraction to contact was 3.2 % for C. rosaceana and 8% for P. pyrusana.
机译:评估了雄卷叶蛾蛾(Choristoneura rosaceana(Harris)(鳞翅目:Tortricidae)和Pandemis pyrusana(Kearfott))对糊剂配方的响应,该糊剂配方载有一系列浓度的两种物种的信息素混合物,并在实验室风洞中进行了评估。在该领域。响应标准是飞行,向信息素源飞行,与信息素源接触以进行风洞测定,以及捕获诱捕器中的飞蛾以进行现场测试。在风洞和田野中,两种物种的雄性对糊的反应通常随着糊中信息素浓度的增加而增加。两种物质对信息素少于0.16%的糊剂几乎没有反应。在所测试的信息素浓度范围内,P。pyrusana的信息素浓度与响应之间的关系是线性的,而对于酒渣鼻的C. rosaceana是正弦的。在风洞和野外都可以看到这些模式。两种物质的信息素共混物的主要成分(Z)-11-十四碳烯基乙酸酯的糊状物的初始释放速率为3.6–3.8 ng / h。在风洞或田野中,使用高达16%的信息素浓度,都没有达到对任何一个物种的响应抑制阈值。对于这两种物种,雄性激素对橡胶隔垫的反应均以1 mg的信息素浓度与浓度大于3-4%的信息素对糊剂的响应相似。对于酒渣鼻念珠菌,在风洞中与糊剂的接触率在统计学上类似于响应于同种雌性的接触率,糊剂信息素浓度高于1.6%。在测试的所有糊状信息素浓度下,P。pyrusana雄性对糊剂的响应率均显着低于对同种雌性。总体而言,糊剂中用于吸引蛾接触的最佳信息素浓度对于酒渣鼻假丝酵母为3.2%,对假单胞菌为8%。

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