哈尔滨市黑光灯下蛾类种类调查

自 198 0～ 1999年在东北农业大学院内进行黑光灯下蛾类 (鳞翅目 )调查 ,已鉴定出 2 11种 ,隶属于 2 1科。其中有黑龙江新分布种类 18种 ,文中记述各种学名     

灭幼脲类对茶黑毒蛾卵和幼虫的生物活性及防治效果

灭幼脲是一类人工合成的昆虫生长调节剂,经对茶黑毒蛾卵和幼虫生物活性的研究,结果表明,灭幼脲Ⅰ、Ⅲ号浸渍卵块能够显著降低其孵化率;饲喂幼虫可使其存活率降低98.7%—100%;而低浓度则可明显延长5龄幼虫的历期。田间试验结果表明,250g/hm~2灭幼脲类的防效达97%—100%,且对人、畜及茶园天敌安全。     

天津市小菜蛾田间种群抗药性现状及监测

连续7年对天津地区小菜蛾田间种群采用叶片浸渍法进行不同杀虫剂田间抗药性测定,结果表明:小菜蛾对50%辛硫磷乳油、4.5%高效氯氰菊酯乳油、90%杀虫单可溶粉、1.8%阿维菌素乳油抗药性倍数分别达到35.31,136.28,55.15,5.12倍,抗性增长迅速,其中对高效氯氰菊酯、杀虫单达到高抗(RR:40～160)水平,为小菜蛾抗药性治理提供了依据。     

高黎贡山绿色生态防控鳞翅目害虫效果研究

结合高黎贡山绿色生态优质烟叶生产示范区建设,通过推广绿色生态防控技术,验证烟叶蛾虫食诱剂对烟草鳞翅目害虫的田间诱杀效果。结果表明,烟叶蛾虫食诱剂对烟草地老虎、甜菜夜蛾、烟青虫、棉铃虫、斜纹夜蛾等害虫有很好的诱杀效果,且烟叶蛾虫食诱剂使用简便,快捷高效,大大降低了化学农药的投放量,且烟叶未直接吸收农药,对于降低农药环境污染、提高烤烟质量安全、保护农田生态环境等具有非常积极的作用,具有大面积推广应用前景。     

山西省灯下蛾类新纪录种记述

对分隶于８科１６属１７种山西省内灯下蛾类新纪录种进行了形态特征描述，其中有２个科为山西省初次纪录，附有各个虫种的采集时间及地点。     

不同地理品系LdMNPV对取食青杨的亚洲型舞毒蛾幼虫的致死与亚致死作用

为了更好的利用LdMNPV对亚洲型舞毒蛾幼虫进行生物防治,本文采用食料给毒法测定了不同地理品系LdMNPV对取食青杨的亚洲型舞毒蛾2龄幼虫的致死与亚致死作用。结果表明:LdMNPV-D、LdMNPV-H、LdMN-PV-J 3个地理品系的LC50分别为333、9、1076 OBs/μL,LT50分别为10.5d1、3.5d、8.9d;亚致死剂量的LdMNPV 3个地理品系对亚洲型舞毒蛾雌雄虫的发育历期、雌雄性比及蛹重均有一定影响,主要的表现为:亚致死剂量的LdMNPV-H和LdMNPV-J品系均延长了亚洲型舞毒蛾发育历期,且与对照相比总虫期达到显著水平;LdMNPV-D品系虽然也延长了亚洲型舞毒蛾的发育历期但总虫期未达到显著水平。亚致死剂量的LdMNPV 3个地理品系降低了亚洲型舞毒蛾的雌雄性比。LdMNPV-D品系对雌雄虫蛹重的影响均达到显著水平;而LdMNPV-J品系对雌虫蛹重的影响达到极显著水平;LdMNPV-H品系对雌雄虫的蛹重均没有显著性的影响。     

Trypsin inhibitor in moth bean: thermal stability and changes during germination and cooking

Trypsin inhibitor from moth bean was studied for thermal stability and changes during germination and cooking. The application of dry heat did not inactivate the inhibitor. However, autoclaving at 120°C at 15lbs pressure destroyed inhibitor activity completely. The extracted inhibitor lost 70% activity in 60 min when incubated at 100°C. Soaking of moth bean seeds for 8 h decreased trypsin inhibitor activity by 20%. The germination of seeds for 24 h resulted in 70% reduction in inhibitor activity. No activity was detected in 48 h germinated seeds. Germination (for 24 h) followed by cooking of moth bean seeds destroyed the trypsin inhibitor completely.     

蛾类栗实害虫的识别

本文从形态学的角度对在浙江省板栗果实上危害的五种蛾类进行了描述，并编制了简明实用的幼虫林间检索表和蛹林间检索表。     

谈进口木材检验中美国白蛾的特性

美国白蛾是危害林木生长的害虫,在国内很少发生,主要是外来侵入,所以把住木材检验检疫关很重要,发现后要进行及时有效的处理。同时还对美国白蛾的习性、特征、和消除办法进行了介绍。     

Insect (Salebria sp.) infestation and impact on Vitellaria paradoxa C.F. Gaertn. fruit production in agroforestry parklands

Vitellaria paradoxa, known as Shea tree or karité, is one of the dominant trees of agroforestry parklands in Sahelian region with an immense commercial value. In this study, we examined infestation of fruit-bearing shoots and fruits on two sites in western Burkina Faso across different reproductive phenophases, crown heights and aspects. The number of infested and healthy shoots and fruits were counted on 60 reproductively active trees randomly selected from on-year shea trees in each site, using a metal frame (0.5 × 0.5 m) to mark a fixed area of the canopy for sampling. The shoot and fruit borer was identified as Salebria sp. (Lepidoptera:Pyralidae), which was not reported earlier. The proportion of infested trees and shoots varied significantly between sites and among reproductive phenophases (P < 0.0001). The site close to the natural forest had the highest infestation rate than distantly located site. Among reproductive phenophases, the proportions of infested trees and shoots were the highest during flowering and fruit set, respectively. Fruit infestation also varied significantly between sites, crown heights and aspects (P < 0.001). The site close to the natural forest and the crown with north-east aspect were heavily infested while the bottom part of the crown had the lowest infestation. As a whole, 49–80% of trees, 24–31% of shoots and 4–15% of fruits were found infested, depending on the site. These infestation levels combined with precocious flower and fruit abscissions would pose serious economic losses that justify a call for immediate pest control initiatives.