假高粱与同属几种植物的形态学比较研究

对假高梁与同属７个种的营养器官和结实器官的形态特征作了观察，特别在籽实、花序、叶缘形态及根状茎的有无和特征方面，进行了较为详细的比较研究。明确了假高粱与其他种之间的异同点，并根据籽实和植株的形态特征，对它们进行了归类。     

塔里木沙漠公路沿线沙物质特征及环境意义

本文对沙漠公路沿线风沙地貌和沙物质的特征、如粒度特征，矿物成分，化学成分以及微量元素组成等进行了分析，为沙漠公路的生物防沙规划，道路的沙害治理提供科学数据。用聚类分析的方法对沙物质分析特征在沙漠环境研究中的应用进行了初步探讨。     

黄土岩性对农业水资源利用的影响及对策初探

从黄土区土壤的岩性特征入手，阐述了黄土岩性对该区农业水资源利用的影响，提出了针对岩性特征，改善黄土区农业生产条件的原则性措施，并以自己的研究实例对其进行了初步的实践，证实了思路的可行性。     

中国大陆新纪录种——二十星菌瓢虫(鞘翅目：瓢虫科)

2022年4月至5月，在广东东莞大岭山森林公园发现瓢虫属中国大陆新纪录种：二十星菌瓢虫Psyllobora vigintimaculata(Say, 1824),对其形态特征进行了描述，提供了彩色整体图和局部特征图，并介绍该种分布、寄主和生物学特征，为后期相关研究提供参考依据。     

近30 a拉萨河流域土地利用变化和生境质量的时空演变特征

为明晰高原流域土地利用变化时空特征及其对生境质量的影响，以典型高原流域——拉萨河流域为例，基于GEE平台和随机森林分类算法，解译拉萨河流域1990—2020年土地利用信息，分析30 a间土地利用的时空动态变化特征，并结合InVEST模型评估流域生境质量，探讨流域生境质量变化特征。研究结果表明：针对高寒高海拔地区的土地利用分类问题，筛选植被生长季，用相邻年份的影像进行补充和替换缺失的数据，并去云后生成的年度合成影像，提高了地类分类效率和精度；建立了一种结合Landsat影像光谱特征、纹理特征和地形特征的最优RF分类模型，实现了对高原流域土地利用信息的提取，OA、Kappa系数和F1-score分别在88.16%、0.84和0.70以上；20世纪90年代以来，拉萨河流域土地利用变化特征整体表现为“五增三减”，草地、建设用地、林地、湿地和水域面积增加，耕地、冰川及永久积雪和未利用地面积减少，其中，建设用地的增长幅度最大，达到288.35%，而耕地缩减最多，达50.18%，且耕地减少主要是受到城镇范围扩张的挤占；未利用地面积减少最为显著，其转出部分主要转化为草地；研究期内高质量生境主要分布在流...     

进口木材中截获天牛幼虫的分类鉴定（一）

本文记述了南京动植物检疫局从进口木材（东南亚地区除外）中截获的２２种天牛幼虫，分别隶属于４个亚科７个属，其中国内无分布报道的有１０种，局部分布的１２种，并对其鉴别特征编制了检索表，对国内无分布报道的１０个种的主要特征分别进行了描述。     

中华松针蚧检疫技术研究初探

本文通过对5年的观察、研究，基本搞清了中华松针蚧的生物学、生态学特征，提出了形态特征检疫检验方法，并对其产地、调运检疫除害处理技术进行了研究。     

香蕉穿孔线虫研究概况（一）

本文综述了香蕉穿孔线虫Ｒａｄｏｐｈｏｌｕｓ ｓｉｍｉｌｉｓ（Ｃｏｂｂ，１８９３）Ｔｈｏｒｎｅ，１９４９的发生历史，地理分布，经济危害性，形态特征，生物学特征，为害状，传播途径，寄主，寿命，生态学，生理小种，检验鉴定和防治的研究。     

墨西哥拟叩甲幼虫的鉴定

本文通过储藏物甲虫幼虫相关类群特征的对比，提出了区分墨西哥拟叩甲种的鉴别特征检索表。     

基于卷积神经网络的昆虫和杂草标本智能全维识别方法初探

本文应用卷积神经网络技术研发了有害生物全维形态特征库和识别模型，采用激光合成干涉成像技术对100种昆虫和杂草标本进行全维高清特征进行信息获取，并进行全维整体轮廓特征和局部形态学特征识别。经过深度学习后测试识别结果，整理统计后得出该模型算法识别标本的正确率在86%～98%范围内，识别的正确率随着学习训练的样本数量增多而提高。表明卷积神经网络模型对标本的学习能力较好，利用全维立体识别技术对昆虫和杂草的鉴定具有可行性。     

南美斑潜蝇及其寄生蜂消长规律

对云南省南美斑潜蝇及其主要寄生蜂潜蝇姬小蜂和潜蝇茧蜂的种群消长规律进行了研究。南美斑潜蝇在昆明关上菜区于 4、7、10月出现 3个高峰。潜蝇姬小蜂在春季蚕豆上种群数量较高 ,是控制南美斑潜蝇的主要蜂种。潜蝇茧蜂在秋季大棚内种群数量较高 ,是控制大棚南美斑潜蝇的主要蜂种。这两种寄生蜂对作物寄主有明显的选择性 ,潜蝇姬小蜂在春季的蚕豆、豌豆和芹菜上种群数量较高 ,潜蝇茧蜂在秋季的莴笋上种群数量较高     

广东美洲斑潜蝇寄生性天敌初步研究

本文对广东菜区美洲斑潜蝇Ｌｉｒｉｏｎｙｚａ ｓａｔｉｖａｅ寄生性天敌的种类及寄生情况进行了初步调查。结果表明,常见的美洲斑潜蝇寄生蜂有５种,其中以底比斯釉姬小蜂Ｃｈｒｙｓｏｃｈａｒｉｓ ｒｅｎｔｈｅｕｓ和冈崎釉姬小蜂Ｃｈｒｙｓｏｎｏｔｏｍｙｉａ ｏｋａｇａｋｉｉ为优势种。     

Einsatz der Pheromonverwirrungstechnik zur Regulierung der Rosskastanien-Miniermotte Cameraria ohridella Deschka u. Dimić (Lep.: Gracillariidae)

The horse chestnut leafminer is an introduced invasive pest that every year causes extensive damage to the leaves of the white flowering horse chestnut tree. An environmentally friendly method to control insect pests involves the use of sex pheromones for mating disruption. A large quantity of artificial pheromone is released into the insect plant system confusing males to the extend that they are unable to locate receptive females. In order to test the potential efficacy of the mating disruption technique on the horse chestnut leafminer we set up semi-field trials with closed experimental units and varying leafminer densities. We counted the number of leaf mines on pheromone treated horse chestnut trees and compared them with an untreated control. Mating disruption lead to a significant reduction in damage by more than 90% in the first and second generation of the leafminer, irrespective of the initial leafminer density. Although these results are very encouraging, high population densities of the horse chestnut leafminer in nature and the patchy distribution of horse chestnut trees in the cities will challenge the efficacy of mating disruption in the field. Further experiments are planned with open experimental units and typical horse chestnut trees in various parks and gardens.     

潜蝇绿凹面姬小蜂的取食寄主习性观察

潜蝇绿凹面姬小蜂通过取食和寄生两种方式致死寄主。雌蜂明显选择成熟的豌豆潜叶蝇幼虫寄生,不寄生初孵幼虫,对初孵幼虫的取食量也比较少。在雌蜂一生中,杀死的寄主总数,取食致死占 59.4％。寄生致死占40.5％。取食致死数与寄主致死数密切相关,说明补充营养对该蜂产卵寄生是必需的。     

First record of Phytomyza gymnostoma Loew (Diptera: Agromyzidae) a leaf mining pest of leeks in Greece

In autumn 2007, an allium leafminer, Phytomyza gymnostoma Loew (Diptera: Agromyzidae), was recorded for the first time in non‐commercial leek crops in the areas of Elassona and Katerini in Central Greece. Leek plants were severely damaged by the leafminer larvae infestation. Typical feeding symptoms were observed, caused by the mining behaviour of larvae within inner and outer leaves of leek plants, resulting in the formation of descending galleries. Pest control was performed locally using commercial insecticides with unknown efficacy mainly due to ignorance of the species biology.     

山东省泰安地区美洲斑潜蝇及其寄生蜂消长规律的研究

近3年以来，笔者对山东省美洲斑潜蝇及其寄生蜂种群的季节性消长规律进行了研究。结果表明，美洲斑潜蝇在泰安灌庄菜区露地栽培蔬菜上于7月中旬，8月中旬至9月中旬出现两个发生高峰，寄生峰的种群高峰则在7月下旬和9月末。春末夏季 初以异角姬小蜂Hemiptarsenus varicornis(Girault)为主，随着时间推移，逐渐以丽潜蝇姬小Neochrysocharis formosa Westwood和绿凹面姬小蜂Chrysochauis pentheus(Ualker)为主。在寄生蜂发生盛期，应注意保护利用。     

寄主植物对美洲斑潜蝇各虫态发育历期的影响

作者对不同寄主植物上美洲斑潜蝇卵,幼虫,蛹发育历期及成虫寿命进行了方差分析及差异显著性测定,并对不同寄主植物上美洲斑潜蝇幼虫,蛹的发育历期和成虫寿命的平均数进行差异显著性比较。结果表明,寄主植物种类不同,美洲斑替蝇幼虫和蛹的发育历期及成虫的寿命料有极显著差异,而卵的发育不受寄主植物种类的影响,结果还表明,寄主植物是影响美洲斑潜蝇发生的一个重要因素。     

美洲斑潜蝇的为害及生物学特性研究

研究表明，美洲斑潜蝇的寄主植物主要有茄科、豆科、葫芦科，其次有十字花科、菊科、锦葵科等。受害严重的作物，平均单叶有虫道１００．４个，单叶有幼虫４６．３头，被害叶率达８５．２％，有虫株率和被害株率均达１００％；研究还表明，美洲斑潜蝇从植株下部开始为害，且以植株中上部虫量最多，而被害叶位多逐叶上移；通过室内饲养和田间观察获知美洲斑潜蝇在茄子、西葫芦和地芸豆上各虫态的发育历期，并描述了其习性     

Note: Systemic effects of a spinosad insecticide onLiriomyza huidobrensis Larvae

In an effort to expand the spectrum of larvicides effective againstLiriomyza huidobrensis (Blanchard), the effect of spinosad was studied on the mortality of the leafminer under laboratory conditions. Bean plants infested with various leafminer stages (egg through third instar) were treated by dipping leaves in a liter of water containing 24, 48 or 96 mg a.i. spinosad or by drenching the soil of plants with 200 ml of water containing 12 mg, 24 mg or 48 mg a.i. spinosad. In general, leaf dipping was more efficacious and adverse effects were observed sooner than with soil drench. All concentrations of spinosad significantly reduced the number of adults that emerged except leaf dip of third instar; only the highest concentration caused significant reduction of pupae and adults. Spinosad would likely be a valuable insecticide for control of the pea leafminer,L. huidobrensis. http://www.phytoparasitica.org posting Nov. 4, 2005.     

Efficacy of Jordanian Isolates of Bacillus thuringiensis against the citrus leafminer,Phyllocnistis citrella Stainton (Lepidoptera: Gracillariidae)

Several laboratory experiments were conducted to test the efficacy of reference and local isolates of Bacillus thuringiensis ( Bt ) against the Middle East strain of citrus leafminer (CLM), Phyllocnistis citrella, on lemon leaves when they were applied to the surface of intact leafminer. Among the six reference strains examined, the strain Bt kurstaki H3a, 3b, 3c ( Bt 4) showed the highest toxicity after 3 days of application. Bt kurstaki also caused additive mortality to the second and third instar larvae of citrus leafminer when the bacteria were combined with Sunspray ® oil. This combination caused significantly higher mortality (63.3%) than did Bt kurstaki alone or Bt kurstaki mixed with the surfactant Surfix ® . Local Bt isolates J6 ( Bt kurstaki ) and J23 ( Bt thuringiensis, H1) showed no significant toxicity differences towards CLM when compared with the reference strain Bt 4. Addition of Bt kurstaki preparation with Vapcocidin ® (pyrethroid insecticide) reduced the required lethal concentration of the pyrethroid pesticide by up to 50%. These results emphasize the value of Bt as part of integrated programmes for controlling citrus leafminer.