The control of Parlatoria pergandii (Comstock, 1881) was studied in citrus orchards at Belksiri (Gharb area), Morocco. Three concentrations Spirotetramat (T0 = 0 L/Ha, T1 0.625 T2 0.755 and T3 1 L/Ha) were applied to 4 ha Valencia late orchard (each dose for citrus). insecticidal evaluated on two stages larvae (L1 L2) P. three females, F1, F2, F3. Similarly, the rates parasitism by Aphytis hisp...

Two systemic neonicotinoids, imidacloprid and thiamethoxam, are widely used for residual control of several insect pests in cotton (Gossypium spp.), vegetables, and citrus (Citrus spp.). We evaluated their impact on six species of beneficial arthropods, including four parasitoid species--Aphytis melinus Debach, Gonatocerus ashmeadi Girault, Eretmocerus eremicus Rose & Zolnerowich, and Encarsia ...

Shipments of 50,000 commercially reared Aphytis melinus DeBach were obtained from each of the five insectaries that produce and sell this parasitoid to citrus growers in California for control of California red scale, Aonidiella aurantii (Maskell). Shipments were received from each insectary every 2 mo over a period of a year to assess variability in quality through time and between insectarie...

Abstract Background Diaspis echinocacti (Bouché) is a major pest of cactus pear species worldwide. Over the past three years, this scale insect has seen increasing interest regarding its spread and importance, as well efficacy primary parasitoids Aphytis debachi Azim, Plagiomerus diaspidis Crawford, biocontrol agents. Infestation plants by D. parasitism rates two were evaluated in fields Zemamr...

The regulation of an asexual population of the oleander scale [Aspidiotus nerii Bouchè (Hemiptera: Diaspididae)] on California bay tree [Umbellularia californica (Hopk. & Arn.) Nut.] by two natural enemies; an idiobiont, ectoparasitoid Aphytis chilensis Howard (Hymenoptera: Aphelinidae) and a coccinellid predator (Rhysobius lophanthae (Blaisd.) (Coleoptera: Coccinellidae), was examined using a ...

Bait sprays containing the toxicant spinosad (GF-120) were applied to citrus groves in the Rio Grande Valley of Texas where Mexican fruit flies were detected in surveillance traps. The sprays were applied as a supplement to a continuous sterile insect release program. Sterile fly captures were 47-63% lower in the treated groves compared with control groves. Eight of 10 secondary pest population...