Hermoso de Mendoza A, Arouni R, Belliure B, Carbonell E A, Pérez-Panadés J
Institut Valencià d'Investigacions Agràries, Apartat Oficial, 46113 Montcada, València, Spain.
J Econ Entomol. 2006 Aug;99(4):1273-9. doi: 10.1603/0022-0493-99.4.1273.
The production of clementine fruit was affected by varying densities of Aphis spiraecola Patch (Hemiptera: Aphididae) maintained on four groups of clementine, Citrus clementina Hort. ex Tan., trees individually isolated in mesh cages. A formula relating the number of aphids per square meter of canopy per group of trees to yield loss in that group of trees was obtained, permitting us to calculate the economic injury levels (EILs) and economic thresholds (ETs) for treatment against A. spiraecola, i.e., EIL, ET, environmental economic injury level (EEIL), and environmental economic threshold (EET). In an example case with current values, EIL = 370, ET = 322, EEIL = 614, and EET = 533 aphids per m2 of canopy. Formulae designed for easier use in the field were obtained to express each of these thresholds. The formulae are compared with those obtained for Aphis gossypii Glover in a previous study; the intervention thresholds for A. spiraecola are slightly higher than those found for A. gossypii.
在四组单独隔离于网笼中的克莱门氏小柑橘(Citrus clementina Hort. ex Tan.)树上,不同密度的绣线菊蚜(Aphis spiraecola Patch,半翅目:蚜科)影响了克莱门氏小柑橘果实的产量。得出了每组树每平方米树冠上蚜虫数量与该组树产量损失之间的关系式,从而使我们能够计算出防治绣线菊蚜的经济损害水平(EIL)和经济阈值(ET),即EIL、ET、环境经济损害水平(EEIL)和环境经济阈值(EET)。在一个采用当前数值的示例案例中,每平方米树冠的EIL = 370、ET = 322、EEIL = 614、EET = 533只蚜虫。得出了便于在田间使用的公式来表示这些阈值。将这些公式与之前一项研究中针对棉蚜(Aphis gossypii Glover)得出的公式进行了比较;绣线菊蚜的干预阈值略高于棉蚜的干预阈值。