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国家科委为了贯彻国务院领导同志关于“推动生物防治工作”的指示,于1983年6月1—6日在江苏常州市召开了生防科技座谈会。 生物防治是对病、虫、草害综合防治的重要组成部分。我国天敌资源丰富,近年来开展保护利用有一定进展。如北京市赤眼蜂放蜂面积402万亩;湖南省保护利用稻田蜘蛛防治飞虱等害虫达300万亩;江苏省1982年在350万亩棉田采取保护利用天敌为主的综 相似文献
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利用动、植物防治农作物的病、虫、草、鼠危害,无污染,无残毒,不伤天敌,效果好,成本低,是一种无公害植保技术,促进农业可持续发展,现综述如下。一、动物治虫害虫天敌主要有寄生蜂、寄生蝇、瓢虫、草蛉、步甲、螳螂、蜘蛛、蚂蚁等。稻区应注意保护利用蜘蛛、缨小蜂、赤眼蜂、绒茧蜂等;棉、麦区应保护瓢虫、蜘蛛、草蛉、食蚜蝇、食蚜蝽、蚜蛮蜂等。采用引进、繁殖和保护天敌是行之有效的方法。全世界引渡成功的昆虫天敌已有294种,例如,引用金小蜂防治棉花红铃虫;草蛉防治棉铃虫;红蚂蚁防治甘蔗螟;黑蚂蚁防治稻纵卷叶螟、三化… 相似文献
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稻田蜘蛛作为多种稻虫的有效天敌,近年来受到国内外害虫防治工作者的广泛重视,并就稻田蜘蛛区系、生物学、生态学(?)性等进行了多方面的研究。有关蜘蛛对稻虫的自然控制效果也有不少研究报道。国际水稻研究所(1971—1975)在笼养条件下研究了拟环纹狼蛛对褐飞虱的抑制作用;Hsieh 相似文献
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陕西稻田蜘蛛初步调查 总被引:1,自引:0,他引:1
近年来随着农作物害虫综合防治工作的蓬勃开展,利用稻田蜘蛛控制害虫日益引起人们的重视。为了摸清我区川道地区稻田蜘蛛资源,查清数量及消长规律,探索其利用途径,给今后保蛛治虫提供依据,我们于80、81年在安康,汉阴,石泉等地对稻田蜘蛛进行了调查,81年还在安康县建民公社联合大队开展了以蛛治虫为重点的综合防治示范,收到了良好的效果。结果如下。 相似文献
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稻田飞虱与天敌数量消长关系及其自然控制作用考查 总被引:8,自引:1,他引:8
十多年来国内对稻飞虱综合治理所采取的措施,有的是以农业防治和化学防治为主;有的主要以保护利用稻田蜘蛛等方法来控制稻飞虱的发生。我们在研究稻飞虱卵寄生蜂缨小蜂的基础上,对福建稻飞虱各虫期的天敌总体进行了初步调查(1977——1982年),得93种。其中缨小蜂、黑肩绿盲蝽、尖钩宽黾蝽和蜘蛛类在稻田数量大,自然控制效能高;瓢虫、隐翅虫也颇常见;螯蜂、撚翅虫和线虫有时局部多发,但通常寄生率较低。1980——1982年我们在福建的沙县和福州调查分析了飞虱与天敌间的数量消长关系,和天敌的自然控制作用。 相似文献
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Robert L. Metcalf 《Pest management science》1989,26(4):333-358
The past 40 years have seen insect resistance to insecticides develop from a scientific curiosity to an immense practical problem that threatens man's ability to control not only the insect pests of agriculture but also the insect vectors that transmit major human and animal diseases. The spread of genes for cross and multiple resistance among insect pests has rendered most of our present insecticides obsolescent and very few novel insecticides are under development as substitutes. The most feasible strategy to maintain adequate control of insect pests is integrated pest management or I P M, in which insecticide management is a useful component. However, much of our present planning for the future of insect control is carried out in ignorance of past failures. We must learn from the past if we are to retain the use of chemical insecticides as a viable component of IPM. 相似文献
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The principal potato pests controlled with plant protection products in Ukraine are Leptinotarsa decemlineata and Phytophthora infestons. Results are presented of trials of insecticides and fungicides against these pests. As a result, Sumi-alfa 5% EC (a.s. esfenvalerate), Karate water-soluble granules (a.s. lambda-cyhalothrin) and Betabytroid 2.5% EC (a.s. beta-cyfluthrin) were recommended for full-scale testing against Colorado beetle in Ukraine. Sul'fokarbation and EKhR 19517 were recommended for full-scale testing against potato blight. 相似文献
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蓟马对农作物的危害逐年加重, 为筛选防治蓟马的高效低毒药剂, 采用叶管药膜法测定了10种常用药剂对4种蓟马的室内毒力, 并开展了田间防效试验。室内毒力测定结果表明, 6%乙基多杀菌素SC和10%虫螨腈SC对4种蓟马的毒力相对较高, 25%噻虫嗪WG和5%甲维盐EC的毒力较低, 西花蓟马和瓜蓟马对10种药剂的敏感性低于花蓟马和烟蓟马。田间药效结果表明, 25%噻虫嗪WG、10%溴虫氟苯双酰胺SC和4.5%高效氯氰菊酯EC对西花蓟马的防效较高, 药后7 d药效最高达到90%以上。综合室内毒力和田间药效试验结果, 推荐4.5%高效氯氰菊酯EC和10%溴虫氟苯双酰胺SC为防治蓟马的首选药剂, 可与25%噻虫嗪WG、48%多杀霉素SC、1.8%阿维菌素EC和10%吡丙醚SC等药剂轮换使用。 相似文献
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Bioassays of Lacanobia subjuncta (Grote and Robinson) larvae established baseline LC50 values and identified the potential of reduced-risk, organophosphate replacement and naturally derived insecticides (eg chloronicotinyls, spinosyns, oxadiazines, insect growth regulators, microbial insecticides and particle films) to control this pest. The toxicities of these products were compared with those of organophosphate, carbamate, chlorinated cyclodiene and synthetic pyrethroid insecticides used in the management of lepidopteran pests in Washington apple orchards. Field trials were conducted comparing candidate insecticides to conventional alternatives. Several new insecticides (eg spinosad, methoxyfenozide, indoxacarb and an aluminosilicate particle film) proved to be effective for the management of L subjuncta. We summarize the goals and challenges of developing an integrated pest management program for new and resurgent pests as insecticide tools continue to change, and propose a hypothesis for the sudden increase in pest status of L subjuncta based on organophosphate tolerances. The role of novel insecticides with unique modes of action in resistance management and the encouragement of biological control are also discussed. 相似文献
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武昌郊区蔬菜害虫(鳞翅目)寄生六索线虫的生物学特性 总被引:1,自引:0,他引:1
武昌郊区蔬菜种植地的六索线虫其含胚卵和Ⅱ期幼虫在土壤中全年均可存在,故在害虫发生季节,就有自然感染现象发生的可能;由于受降水量和气温的影响,一年中只出现春、秋两个感染高峰期,在最适条件下,六索线虫一年可完成两个世代;六索线虫的Ⅳ期幼虫、成虫、含胚卵和Ⅲ期幼虫均可越冬,且越冬的含胚卵和Ⅱ期幼虫是春季感染的主要线虫虫源.不合理地使用农药和不适时地更换茬口是影响六索线虫资源保护和利用的主要人为因子;伏秋干旱季节,采用畦间沟灌法抗旱,可提高自然感染率并使六索线虫资源得以充分利用. 相似文献
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新疆有毒植物资源及其植物源杀虫剂开发应用前景 总被引:2,自引:0,他引:2
植物源杀虫剂(botanical insecticides)就是利用植物的某些部位或提取成分,加工成有杀虫作用的杀虫剂。在新疆,有毒植物资源种类繁多。通过介绍新疆有毒植物的资源概况,讨论有毒植物作为农业杀虫剂的应用现状和存在问题,提出其种质资源作为植物源杀虫剂的开发利用前景。 相似文献
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Brian M. Gerard 《Pest management science》1978,9(5):465-477
Legumes have evolved effective defences against many pests by accumulating high levels of poisonous or indigestible compounds, pubescence and vigorous growth. These defences are greatly reduced in many cultivars of cowpea and common bean, which are susceptible to a succession of pest complexes. Stem pests and defoliators may kill seedlings but well-established plants tolerate heavy insect damage to leaves, flowers and green pods before pod or grain yields are reduced; virus vectors and root-knot nematode may be of greater importance. Generally, pod-borers, pod-sucking bugs and seed beetles are the main key pests. Control programmes are based on post-flowering treatments with broad spectrum insecticides. Battery-powered, controlled-droplet application machines are ousting knapsack sprayers in small-scale farming and competing with tractors and aircraft in larger units; subsistence cropping is still predominant and most legume crops remain unsprayed. Consequently, current emphasis is placed on developing cultivars with high yield potential and multiple pest and disease resistance. Insect infestations are lower in most other major legume crops largely due to pubescence (e.g. soybean, blackgram, greengram), fruiting in the dry season (e.g. pigeonpea, chickpea) or geocarpy (e.g. groundnut). Future entomological research will presumably concentrate on assessing the status of pests on resistant cultivars and introducing integrated control methods for the key pests. 相似文献
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K. El Fakhouri S. Lhaloui B. Faouzi M. El Bouhssini A. Sabraoui M. Rochd 《EPPO Bulletin》2019,49(2):327-335
Defoliating caterpillars from the family Noctuidae are the most destructive insect pests on spearmint crop in Morocco. To control these pests, the growers apply several applications of non‐selective insecticides that are sometimes not registered for this use. This study investigates the efficacy of a set of selective chemical insecticides and other insecticides registered for organic farming against the defoliating caterpillars for better protection and in order to limit pesticide residues. Two insecticides authorized in organic farming and four other chemical insecticides were tested against the defoliating caterpillars under field conditions, following the randomized complete block experimental design with three replications. The comparative study of the efficacy of the different insecticides tested showed an average caterpillar reduction of 89.4, 82.5 and 68.1% with a defoliation reduction of 57.1, 53.8 and 43.9% for two of the tested synthetic insecticides, chlorantraniliprole (15cc/hl), emamectin benzoate (250g/ha) and for one of the tested bio‐insecticides, spinosad (30cc/hl) respectively. An increase of the total fresh mint weight compared to the non‐treated control was recorded for these three insecticides with 50.9%, 48.4%, and 40.5% for emamectin benzoate, chlorantraniliprole, and spinosad respectively. Insecticides containing chlorantraniliprole, emamectin benzoate, or spinosad active substances could be used as alternatives to other synthetic broad‐spectrum insecticides commonly used on spearmint in Morocco. 相似文献