the strawberry spider mite (ssm), tetranychus turkestani ugarov & nikolski, is an important pest of greenhouse cucumber in tropical and temperate regions of the world. the use of the host plant resistance is a basic method to reduce pesticide application in greenhouses. in this study, the biological responses of ssm to six greenhouse cucumber cultivars (puia, hedieh, milad ghadim, milad jad...

as the host plants based on their physical and chemical characteristics can affect virulence of microbial control agents on the target pest and its natural enemies, therefore in the current study, the virulence of beauveria bassiana tv isolate at concentration 107 conidia/ml was evaluated against t. urticae female adults, on three different host plants; tomato, cucumber and strawberry. spray to...

ABSTRACT: The spotted spider mite, Tetranychus urticae (Koch, 1836), is one of the most important pests strawberry production systems worldwide. Because plant resistance an integrated management strategy, present study investigated effects 12 genotypes on biological characteristics this pest under laboratory conditions (25 ± 2 °C and RH 60 10%; 12:12-hour photophase). experiment was carried usi...

The use of a standardized beat sampling method for estimating spruce spider mite, Oligonychus ununguis (Jacobi) (Acari: Tetranychidae), densities on a widely used evergreen ornamental plant species, Juniperus chinensis variety 'Sargentii' A. Henry (Cupressaceae), was examined. There was a significant positive relationship between total spruce spider mite densities and spider mite densities from...

greenhouse whitefly and two-spotted spider mite are two important pests on greenhouse crops. the polyphagous predatory mite amblyseius swirskii preys on both of these pests. in this research, predation of the predatory mite on different stages of both pests, prey stage preference of pests, prey preference and switching behavior of predator between preferred stage of greenhouse whitefly and two-...

INTRODUCTION Several arthropod pests infest strawberry crop in California and cause a significant yield loss according to Zalom, Bolda, Dara, and Joseph [1]. Strawberry is an important commercial crop and the annual report from California Department of Pesticide Regulations [2] indicates that large quantities of acaricides, fungicides, herbicides, and insecticides are applied to manage a variet...

neoseiulus californicus (mcgregor) is a predatory mite that can control spider mites. the effect of seven strawberry cultivars (including: ‘marak’, ‘yalova’, ‘aliso’, ‘gaviota’, ‘sequoia’, ‘camarosa’ and ‘chandler’) on the growth and development of n. californicus was studied in the laboratory conditions (27 ± 1 °c, 70 ± 5% rh and 16l: 8d photoperiod). there was significant difference in the nu...