Functional Response of <i>Neoseiulus barkeri </i>to<i> Scirtothrips dorsalis </i>Hood of Mango
Welcome to Chinese Journal of Tropical Crops,

Chinese Journal of Tropical Crops ›› 2020, Vol. 41 ›› Issue (5): 1001-1006.DOI: 10.3969/j.issn.1000-2561.2020.05.021

• Crop Pests, Diseases and Their Control, Environmental Protection • Previous Articles     Next Articles

Functional Response of Neoseiulus barkeri to Scirtothrips dorsalis Hood of Mango

ZHOU Yang1,CHEN Junyu2,*(),CAI Ducheng1,*(),FU Yueguan2   

  1. 1. College of Plant Protection, Hainan University, Haikou, Hainan 570228, China
    2. Institute of Environment and Plant Protection, Chinese Academy of Tropical Agricultural Sciences, Haikou, Hainan 571101, China
  • Received:2019-08-20 Revised:2019-09-14 Online:2020-05-25 Published:2020-06-15
  • Contact: CHEN Junyu,CAI Ducheng

Abstract:

In order to determine the damage control potential of Neoseiulus barkeri on Scirtothrips dorsalis Hood of mango, the predation ability of N. barkeri on S. dorsalis Hood of mango was observed under the conditions of temperature of (27±1)℃ and RH (75±5)% in the room. The predation efficiency of different insect states of N. barkeri on S. dorsalis Hood was comprehensively assessed by the instantaneous attack rate (a), handing time (Th), predationcapacity (a/Th) and other parameters. N. barkeri could feed on the adults, nymphs of the first and second age of S. dorsalis Hood, and had a certain predating ability. With the increase of prey density, the daily feeding amount of predatory mites increased gradually. Among them, the female adult mite and deutonymph mite had the largest predationcapacity to the nymph of the first age of S. dorsalis Hood (10.35 and 12.82 per day, respectively), while the male adult mite had the largest predationcapacity to the nymph of the second age of S. dorsalis Hood (12.48 per day). The female and male adult mites of Apterygium barbati showed the strongest instantaneous attack rate to the 2-year nymph of the S. dorsalis Hood (1.0227 and 1.1208, respectively), while the deutonymph mite showed the maximum instantaneous attack rate to the female adults of S. dorsalis Hood (1.5774).

Key words: Neoseiulus barkeri, mango, Scirtothrips dorsalis Hood, functional response, predatory efficiency

CLC Number: