选取冀中北部固安县的3块玉米田为试验点，对草蛉的生物生态学特性及生存对策进行了研究，量化了防护林对农田系统的生态效应范围及阈值，揭示了林带-天敌-害虫关系中天敌节肢动物对农田害虫的作用范围。结果表明：草蛉的田间草地带分布密度与草地带宽度量呈非正相关关系，宽度在1m 左右的草地带有更高的草蛉密度，草蛉密度在邻近道路区域内呈现出距道路越远密度越高的分布规律，邻近林带处的草蛉数量明显更多；林带对天敌的这种效应范围因林带结构不同表现各异，林带对草蛉的效应范围最大为20 m；作物耕种前与生长早期，林带是本土物种得以栖息的重要的，甚至是唯一的生境，成为一些天敌向农田扩展的“种库”，它同时也是许多物种在作物收获后最重要栖息和越冬场所。

Taking three cornfield in Gu’an County of central Heibei Province as experiment spot,biological &ecolog-ical characteristics and survival strategies were studied.The radiation range & threshold of eco-role for shelterbelt system by shelterbelt were quantified.Among the relationship of forest-predators-insects,the range of predator ar-thropod on agricultural pests was revealed.Result shows that:distribution density & width amount of field grass strip show non-positive correlation;the width of grass strip being about 1 m has a higher density with Chrysopa perla;in the neighboring region of the road,the distribution law of density for Chrysopa perla is that the longer the distance the higher the density of the road;the numbers of Chrysopa perla which is near the shelterbelt are obvious more.The effect of the shelter on the predators showed differences due to the different shelterbelt structures;effects range of shelterbelt on Chrysopa perla is up to 20 m;during the time before

为明确中华草蛉对大豆蚜的控制效果,通过室内试验测定了中华草蛉3龄幼虫对大豆蚜的功能反应,表明其功能反应属于HollingⅡ型圆盘方程,经χ2检验,其理论值与观察值差异不显著。中华草蛉对大豆蚜功能反应的HollingⅡ方程为:Na=0.659 3 NT/(1+0.659 3×0.004 3 N),(R=0.994 2,P0.01),推得其最大捕食量为230.088 0头·d-1;其自身密度对捕食内干扰作用的Hassell-Varley方程为:E=0.383 6 P-0.602 3,搜索系数Q=0.383 6,干扰系数m=0.602 3。

To clear the Chrysopasinica Tjeder control effect on Aphis glycines .3-Instar Chrysopasinica Tjede larvae functional response of A phis glycines was tested ,indicating that the functional response was holling Ⅱtype disc equation ,through the χ2 testing ,the difference between theoretical and observation were not signifi-cant .Chrysopa sinica Tjeder on A phis glycines holling Ⅱ functional response equation was :Na= 0 .659 3 NT/(1+0 .659 3 × 0 .004 3 N) ,(R=0 .994 2 ,P<0 .01) ,calculating the maximum amount of predation were 230 .088 0 A phis glycines each day ,interference of its own density on predation Hassell-Varley equation was :E=0 .383 6 P-0 .602 3 ,search factor Q=0 .383 6 ,interference coefficient m=0 .602 3 .

通过采用5点调查法,对江西省南昌市烟田主要害虫及其天敌种群数量进行调查并对其进行动态分析。结果显示:烟蚜在烟草整个生长期均有发生,其种群数量动态变化呈双峰曲线,第1个蚜量高峰期出现在6月初,第2个蚜量高峰期出现在6月末至7月初,且蚜量雨后显著降低,雨后高温则又明显增加。烟青虫和斑须蝽在5月初开始发生,其种群数量动态变化均呈单峰曲线。烟青虫虫量高峰期出现在5月末至6月初,斑须蝽虫量高峰期则在6月中旬。烟田内主要天敌有烟蚜茧蜂、蜘蛛类、瓢虫和草蛉。天敌与烟蚜、烟青虫具一定的虫量跟随关系,其中烟蚜茧蜂和草蛉分别在烟草生长前后期与烟蚜跟随关系明显,蜘蛛则在烟青虫发生后与其跟随关系较为明显。

Based on the survey method of five points, we investigated into the population of the pests and natural enemies in tobacco fields in Nanchang, Jiangxi Province, and analyzed their dynamic changes. The experimental results indicated that the population of Myzus persicae had two peaks within a year, the first in early June, and the second from the end of June to early July. Also the population of M. persicae decreased significantly after the rain, and then increased significantly after high temperature. The population of Helicoverpa assulta and Dolycoris baccarum, respectively, had one peak within a year. The peak of H. assulta population occurred from the end of May to early June, and the peak of D. baccarum population occurred in the middle of June. The main natural enemies of the pests in tobacco fields included Aphidius gifuensis, spiders, lacewings and lady beetles. These natural enemies showed synchronization with M. persicae and H. assulta. Of the natural enemies, A. gifuensis and

柑橘木虱Diaphorina citri Kuwayama是柑橘黄龙病的重要媒介昆虫，对我国柑橘产业的健康发展潜在着巨大的威胁。本文在综合国内柑橘木虱防控技术的基础上，对近年来柑橘木虱生物防治的最新研究进展进行了综述，并且对其生物防治的发展前景给予了展望。目前应用于柑橘木虱生物防治的天敌资源主要是天敌昆虫及昆虫病原真菌，其中捕食性天敌主要包括瓢虫、食蚜蝇、草蛉和蜘蛛，寄生性天敌昆虫主要包括啮小蜂和跳小峰；昆虫病原真菌主要包括蜡蚧轮枝菌、拟青霉、白僵菌、桔形被毛孢等。期望通过对柑橘木虱生物防治工作的综述，为我国今后柑橘木虱的科学、高效防控及其可持续治理提供参考，不断推动我国柑橘产业的健康发展。

The citrus psyllid, Diaphorina citri Kuwayama, is the primary vector of citrus Huanglongbing disease, Candidatus Liberibacter asiaticus, which has the huge potential threats to the development of citrus industry in China. Based on the comprehensive understanding of D. citri control technologies, we reviewed the latest advances in biological control of D. citri and forecasted its future prospects. The main biological control resources of citrus psyllid currently are natural enemy insects and entomopathogenic fungi, among which predatory ladybeetles, lacewings, spiders and hover flies are the dominant species of predator, while Tamarixia radiata and Diaphorencyrtus aligarhensis are the two dominant parasitoids in China. Several representative entomopathogenic fungi include Lecanicillium lecanii, Isaria fumosorosea, Beauveria bassiana and Hirsutella citriformis have been reported with high virulence to citrus psyllid. This current review is expected to provide technical support and theore

为了评价糖醋液诱杀、灯光诱杀和刮树皮3种无公害防治方法对香梨优斑螟的防治效果。本试验在新疆阿克苏地区林科所推广站香梨园内,调查糖醋液每日诱虫数、不同波长黑光灯诱虫数和刮树皮前后每株虫口数。连续27天糖醋液诱共杀香梨优斑螟1804头,单日最高诱虫量267头;波长为425nm的黑光灯每日诱虫6.83头,显著高于节能灯;刮树皮前后平均每株虫口数存在显著性差异,从12.3头/株降到3.73头/株。这3种防治方法都对香梨优斑螟有一定的防治效果,糖醋液诱杀香梨优斑螟的同时诱杀了大量的普通草蛉,波长为425nm的黑光灯诱虫效果最好,刮树皮能够有效地控制香梨优斑螟的种群数量。建议对糖醋液改良,使用425nm的黑光灯灯对香梨优斑螟进行监测,每年刮树皮1次对香梨优斑螟进行防治。

The aim of this study was to evaluate the efficacy of sugar-vinegar mixture, black-light tube and curettage of tree bark against Euzophera pyriella Yang. The number of Euzophera pyriella Yang attracted by sugar-vinegar mixture and different black-light tube every day and the mean larval population density of Euzophera pyriella Yang before and after curettage of tree bark were tested in pear garden of Aksu. The amount of Euzophera pyriella Yang attracted by sugar-vinegar mixture was 1804 in 27 days and the maximum was 267 in single-day. There was significantly difference between the black-light tube and energy-saving lamp (P<0.05). The black-light tube with the wavelength of 425 nm was the most effective tube. The mean number of Euzophera pyriella Yang attracted by it was 6.83 in each day. Before and after curettage of tree bark, the mean larval population density of Euzophera pyriella Yang had decreased from 12.3 to 3.73 (P<0.01). The results showed that all of sugar-vinegar mixture, b