Some experiments indicate the ability of coccinellids to significantly suppress aphid abundance. Exclusion of predators by caging aphid-infested plants has repeatedly resulted in higher aphid populations and greater aphid population growth rates. However, aphidophagous coccinellids have never proved effective in controlling aphid populations in the field. To resolve this apparent contradiction,...

The relationship between pests and natural enemies using multivariate analysis on cotton in different spacing has not been documented yet. Using multivariate approaches is possible to optimize strategies to control Aphis gossypii at different crop spacings because the possibility of a better use of the aphid sampling strategies as well as the conservation and release of its natural enemies. The...

La agricultura convencional implica la simplificación de estructura del medioambiente con una considerable disminución diversidad natural. Apoyados en práctica los policultivos (maíz- calabaza, maíz-ajonjolí, maíz-frijol, maíz-girasol), se desarrollaron un grupo experimentos encaminados a favorecer insectil. investigación realizó años 2017, 2018 y 2019, el municipio Fomento, Provincia Sancti Sp...

A review of the Neotropical Coccinellidae in Prague Museum, also including to a lesser extent material from other collections, has led description 14 new species Brazil, Ecuador, Panama, Peru, and Venezuela, two combinations 16 first records for countries. The described are Cyrea napoensis, Dilatitibialis manaus (Brachiacanthini), Neaporia chucanti, Prodilis saopaulo, P. pastaza qedi (Cephalosc...

Two experiments were performed in the laboratory to understand the relationships between oviposition preference and larval performance of the two predatory hoverfly species, Episyrphus balteatus de Geer and Metasyrphus corollae Fabricius. We first conducted laboratory experiments to understand the nature and relative strengths of intraguild predation between the larvae of three ladybird species...

The hemlock woolly adelgid, Adelges tsugae Annand, is an introduced pest in North America that is native to Asia, and is causing extensive damage to eastern hemlock (Tsuga canadensis Carriere) and Carolina hemlock (Tsuga caroliniana Englemann) in the eastern United States. We compared two coccinellids imported for biological control of the adelgid: Scymnus ningshanensis Yu et Yao fromChina and ...

The hemlock woolly adelgid, Adelges tsugae Annand, is a major threat to hemlocks in the eastern United States. As part of efforts to control this pest, Scymnus (Neopullus) sinuanodulus Yu et Yao, a potential predator, was collected from hemlocks in Yunnan, China. Three shipments were imported during 1996 and 1997 to a quarantine laboratory to study the beetleÕs biology. Beetles began ovipositio...

PURPOSE The purpose of this study was to evaluate the anticancer activity of 10 selected traditional Chinese medicinal plants on 4 cancer cell lines, namely MCF-7 (breast carcinoma), BALL-1 (acute lymphoblastic leukemia), Huh-7 (hepatocellular carcinoma), HeLa (cervical carcinoma) and their cytotoxicity on a normal cell line, namely MCF-10A (non-tumorigenic mammary epithelial line), about which...