Reis Paulo R, Teodoro Adenir V, Pedro Neto Marçal, da Silva Ester A
EcoCentro, CTSM, EPAMIG.
Neotrop Entomol. 2007 Mar-Apr;36(2):282-7. doi: 10.1590/s1519-566x2007000200016.
The predaceous mite Amblyseius herbicolus (Chant) is the second most abundant phytoseiid on coffee plants (Coffea arabica L), after Euseius alatus DeLeon, in Lavras, MG, Brazil, associated to the vector of the coffee ring spot virus, Brevipalpus phoenicis (Geijskes) (Acari: Tenuipalpidae). Its life history was studied taking into account biological aspects, life table, predatory activity and functional and numerical responses in relation to the density of the prey. The adult female has longevity of 38 days when supplied with B. phoenicis. The intrinsic rate of population increase (r m) was 0.150 and the mean generation time (T) 25.3 days. The population doubles every 4.6 days. Thirty mites B. phoenicis /3-cm diameter coffee leaf arenas were separately offered to one specimen of each predator phase. Adult females were more efficient in killing all developmental phases of B. phoenicis, followed by the nymph stages. For the functional and numerical responses studies, from 0.14 to 42.3 immature specimens of the prey /cm(2) of arena were submitted to the predator, the preferred phase for predation. Predation and the oviposition of A. herbicolus increased with increasing prey density, with a positive and highly significant correlation. Regression analysis suggests a functional type II response, with a maximum daily predation near 35 B. phoenicis /cm(2) /one adult female.
捕食螨赫氏钝绥螨（Chant）是巴西米纳斯吉拉斯州拉夫拉斯市咖啡植株（阿拉伯咖啡）上第二丰富的植绥螨，仅次于翼钝绥螨（Euseius alatus DeLeon），它与咖啡环斑病毒的传播媒介——咖啡短须螨（Brevipalpus phoenicis (Geijskes)）（蜱螨亚纲：细须螨科）有关。研究了其生活史，考虑了生物学特性、生命表、捕食活动以及与猎物密度相关的功能反应和数量反应。当提供咖啡短须螨时，成年雌螨的寿命为38天。种群内禀增长率（rm）为0.150，平均世代时间（T）为25.3天。种群每4.6天翻倍。将30只咖啡短须螨/直径3厘米的咖啡叶饲养区分别提供给每个捕食阶段的一个样本。成年雌螨在杀死咖啡短须螨的所有发育阶段方面效率更高，其次是若螨阶段。在功能反应和数量反应研究中，将0.14至42.3只未成熟的猎物样本/cm²饲养区提供给捕食者，这是捕食的偏好阶段。赫氏钝绥螨的捕食和产卵随着猎物密度的增加而增加，呈正相关且高度显著。回归分析表明是II型功能反应，一只成年雌螨每天的最大捕食量接近35只咖啡短须螨/cm²。
