Thermal biology and establishment potential in temperate climates of the predatory mirid <Emphasis Type="Italic">Nesidiocoris tenuis</Emphasis> |
| |
Authors: | Gwennan E Hughes Jeffrey S Bale Guido Sterk |
| |
Institution: | (1) School of Biosciences, University of Birmingham, Edgbaston, Birmingham, B15 2TT, UK;(2) Biobest B.V., Westerlo, Belgium |
| |
Abstract: | Nesidiocoris tenuis Reuter (Hemiptera: Miridae) is a polyphagous mirid currently used for the control of leafminers, thrips, whitefly and spider
mites in Mediterranean regions to which it is indigenous. This study investigates the establishment potential of N. tenuis in cool temperate climates typical of northern Europe through assessment of its thermal biology and low temperature tolerance
in laboratory and field experiments. The developmental threshold of N. tenuis was estimated to be 12.9°C with no indication of ability to diapause. Supercooling points of the acclimated and non-acclimated
adults and nymphs of the mirid were between −17.6° and −21.5°C and the LTemp50 was around −12°C, indicating a high level of pre-freeze mortality. The LTime50 at 5°C was nine days and 100% mortality occurred after less than four weeks of winter field exposure. Collectively these
data suggest that N. tenuis is unlikely to establish in northern Europe and would therefore have little or no non-target effects on native species in
such regions. |
| |
Keywords: | |
本文献已被 SpringerLink 等数据库收录! |
|