The green lacewing, Mallada basalis (Walker) (Neuroptera: Chrysopidae), is one of the most important natural enemies used in biological control programs for forestry and agricultural pests. However, it is difficult to mass rear M. basalis instars because they are voracious cannibals. This study was conducted to determine the effect of cannibalism on the development and fecundity of M. basalis. ...

Irrigated almond orchards in Spain are increasing acreage, and it is pertinent to study the effect of deficit irrigation on presence pests, plant damage, other arthropod communities. In an orchard examined from 2017 2020, arthropods diseases were studied by visual sampling under two treatments (T1, control T2, regulated (RDI)). Univariate analysis showed no influence aphid Hyalopterus amygdali ...

Citricola scale, Coccus pseudomagnoliarum (Kuwana) (Hemiptera: Coccidae) was for the first time registered in Serbia 2015 area of Belgrade on Celtis occidentalis L. C. develops one generation annually and overwinters as second-instar nymph host twigs. It forms numerous colonies infested plants, symptoms its feeding appear form drying leaves In addition, large amounts honeydew that this scale se...

Alternative strategies to the common practice of spraying with insecticide in order to control the rosy apple aphid Dysaphis plantaginea (Pass.) (Homoptera: Aphididae) are required. Biological control by natural enemies is a possible tool. In Asturies, despite the tradition of growing local cider apple trees, there are no studies about the community of D. plantaginea predators and their impact ...

As larvae, lacewings in the genus Chrysoperla (Neuroptera: Chrysopidae: Chrysopinae: Chrysopini) are predators of aphids and other soft-bodied insects. Adult Chrysoperla, however, are not predacious and feed on pollen, nectar, and honeydew. Earlier studies observed that Chrysoperla adults house yeasts in their crops, and based on the results of a sorbic acid yeast suppression experiment, conclu...

The life cycle, within-field distribution, crop damage and impact of natural enemies of the potato tuber moth, Phthorimaea operculella (Zeller) were investigated in two potato cropping systems. The two systems differed in soil type (sandy vs. loess) which in turn affected the choice of cultivars, irrigation programme, insecticide application method (ground vs. aerial), and planting and harvest ...

This study aimed to determine the consumption of Planococcus citri (Risso, 1813) (Hemiptera: Pseudococcidae) nymphs and predator:prey ratio required for high predatory efficacy survival Chrysoperla externa (Hagen, 1861) (Neuroptera: Chrysopidae) larvae under different densities prey, reared in rose bushes. Consumption by first-, second-, third-instar C. was assessed. The efficiency predator wer...