Location, reproduction and movement of Neoseiulus californicus (Acari: Phytoseiidae) during the autumn, winter and spring in orchards in the south of France
Location, reproduction and movement of Neoseiulus californicus (Acari: Phytoseiidae) during the autumn, winter and spring in orchards in the south of France
复制标题
法国南部果园秋季、冬季和春季期间加州新螨(螨虫:植螨科)的位置、繁殖和活动
DOI:
10.1007/bf00051722
复制
发表时间:
1994
影响因子:
2.2
通讯作者:
P. Auger
中科院分区:
文献类型:
--
作者:
D. Raworth;G. Fauvel;P. Auger
Field samples and experiments conducted in apple orchards in the south of France showed thatNeoseiulus californicus(McGregor) searched for prey on the trees and in the ground cover as late as mid-November 1993, and at least as early in the spring as the end of February 1994. Overwintering females fed, expanded and produced viable eggs within 7.9±0.3 (SE) days given the natural light regime, adequate food and temperatures of 17.0±20.6°C. The first generation ofN. californicusdeveloped in the field during March and April 1994.N. californicusnymphs, females and males readily moved over bare ground and through a grass ground cover to trap plants located on stakes 1 m above the ground. In the laboratory, the rate of movement of adult females on 0.5 mm copper wire was a linear function of temperature above a threshold of 11.9±0.9°C. At 25°C they travelled 10 m per h. The migration rate ofN. californicusto trap plants on stakes placed in an orchard 13 Apr. increased in 2 weeks from 0.07 to 0.57 predators/trap plant/degree-day, while the migration rate to plants placed directly in the ground cover was 1.45 predators/trap plant/degree-day. The largest population ofN. californicusin April occurred on Barley,Hordeum murinumL. This plant produces pollen in April and May, and may be useful in biocontrol programs.