杀虫剂对控制松柏种植园锥甲的生物有效性

Jesús Morales-Bautista, V. D. Cibrián-Llanderal, J. López-Upton, David Cibrián-Tovar
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引用次数: 0

摘要

松树人工林会受到以小果和种子为食的昆虫的侵袭,这是一个植物检疫问题,会造成生产上的经济损失。这项研究评估了化学杀虫剂对控制 Pinus cembroides Zucc.随机施用阿维菌素(有效成分(活性成分)18 克/升-1)、苯甲酸阿维菌素(有效成分(活性成分)19.2 克/升-1)、唑虫酰胺(有效成分(活性成分)738.4 克/升-1)和未经处理的水对照,重复施用 5 次。56 天后重复施用。每次重复都是对一棵有 20 个茎生叶的树施用一次杀虫剂。在 8 次评估中,每种处理的健康小锥体百分比决定了杀虫剂的 BE 值:分别为 0、19、32、50、65、83、109 和 144 天。经方差分析 F 检验,在 5%误差范围内,各处理之间无明显差异。8 月和 9 月间,被害小锥果的平均比例在 0.25%到 2.5%之间。在 9 月份的初始评估和最终评估之间,死亡小锥的平均数量增加了 21.25%。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Biological Effectiveness of Insecticides to Control Cone Beetle in Pinyon Pine Plantations
Pinyon pine plantations are attacked by insects that feed on conelets and seeds, a phytosanitary problem that causes economic losses in production. The study evaluated the biological effectiveness (BE) of chemical insecticides to control Conophthorus edulis Hopkins in a Pinus cembroides Zucc. forest plantation. The treatments abamectin (18 g of active ingredient (a.i.) L-1), emamectin benzoate (19.2 g of a.i. L-1), azadirachtin (738.4 g of a.i. L-1) and an untreated check with water were applied randomly with 5 repetitions. The application was repeated 56 days later. Each repetition consisted of applying a treatment to a tree with a cohort of 20 strobili. The BE of the insecticides was determined by the percentage of healthy conelets for each treatment in 8 evaluations: 0, 19, 32, 50, 65, 83, 109 and 144 days. No significant differences were found between treatments at 5% error by the ANOVA F test. Between the months of August and September, general averages were found between 0.25 to 2.5% of attacked conelets. An increase of 21.25% was observed in the average number of dead conelets between the initial and final evaluations in September.
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