Detailed Information on Publication Record
2016
Temperature-dependent effect of two neurotoxic insecticides on predatory potential of Philodromus spiders
MICHALKO, Radek and Ondřej KOŠULIČBasic information
Original name
Temperature-dependent effect of two neurotoxic insecticides on predatory potential of Philodromus spiders
Authors
MICHALKO, Radek (203 Czech Republic, guarantor, belonging to the institution) and Ondřej KOŠULIČ (203 Czech Republic)
Edition
Journal of Pest Science, 2016, 1612-4758
Other information
Language
English
Type of outcome
Článek v odborném periodiku
Field of Study
10600 1.6 Biological sciences
Country of publisher
Germany
Confidentiality degree
není předmětem státního či obchodního tajemství
References:
Impact factor
Impact factor: 3.728
RIV identification code
RIV/00216224:14310/16:00089415
Organization unit
Faculty of Science
UT WoS
000376923400020
Keywords in English
Lethal effect; Sublethal effect; Spinosad; lambda-cyhalothrin; Functional response
Změněno: 14/4/2017 11:46, Ing. Andrea Mikešková
Abstract
V originále
Although temperature significantly influences pesticides’ impact on ectotherms, the joint effect of temperature and pesticides on natural enemies is understudied. In laboratory conditions, we investigated the influence of two commonly used insecticides, spinosad and lambda-cyhalothrin, on mortality and functional response of a community of Philodromus spiders (P. cespitum 80 %, P. albidus 20 %) at different temperatures (10, 17, 25, and 31 °C). Almost all spiders died at 31 °C in the lambda-cyhalothrin treatment. Mortality was very low at other temperatures. Mortality in the spinosad treatment did not differ from the control. Both pesticides reduced the prey capture rate and/or changed the type of functional response at all temperatures. The sublethal effects of lambda-cyhalothrin were most pronounced at 10 °C, while those of spinosad were most marked at 10 and 25 °C. At 10 °C, the pesticides’ effects on the spiders were long lasting. In addition, lambda-cyhalothrin influenced the philodromids much more negatively than spinosad suggesting its incompatibility with IPM across all temperatures. The results support the importance of studying the temperature-specific effects of pesticides in order to increase the efficiency of integrated pest management. Philodromids are effective in pest suppression at low temperatures, but application of pesticides at the beginning of the season can significantly disrupt their biocontrol potential.