不同色板和引诱剂对设施蔬菜主要害虫的诱杀效果

为了发挥物理防治技术的作用,降低农药用量,本文探讨了不同色板和诱芯对设施蔬菜主要害虫的控制作用和使用技术。结果表明,在种植辣椒、番茄和黄瓜的温室,普通黄板和烟粉虱诱芯黄板对烟粉虱均具有较好的诱杀效果,2种色板诱杀烟粉虱的数量无显著差异;蓝板无明显诱杀作用。第6周,普通黄板对烟粉虱的诱杀量高于烟粉虱诱芯黄板,且差异显著(P0.05),表明烟粉虱对黄色的趋性更强。针对温室害虫蓟马,普通蓝板的诱虫量显著高于普通黄板和烟粉虱诱芯黄板,表明蓟马对蓝色的趋性更强。因而,在烟粉虱和蓟马混合发生的温室中,推荐黄板和蓝板的联合使用同时治理两种害虫。     

Assessing whole-sounder removal versus traditional control for reducing invasive wild pig (Sus scrofa) populations

BACKGROUND

Trapping is commonly used as the primary management tool in attempts to reduce invasive wild pigs (Sus scrofa), but traditional trapping techniques are often ineffective. However, recently developed traps permit the capture of entire social groups (sounders) of wild pigs, and the strategy of whole-sounder removal may achieve more effective control. Our objective was to experimentally compare traditional control (TC; primarily traditional trapping, but including hunting with dogs, and opportunistic shooting) and whole-sounder removal (WSR) strategies by assessing density reduction and removal rate after 1 and 2 years of treatment.

RESULTS

After 1 year of trapping, average wild pig density on WSR units declined 53% and remained stable after the second year, whereas on TC units, pig density did not differ after trapping, although it declined 33% and remained stable after the second year of trapping. The median removal rate (percentage of uniquely marked pigs present at the beginning of each year that were removed) was 42.5% for WSR units and 0.0% for TC units during 2018 and were 29.6% from WSR units and 5.3% from TC units during 2019.

CONCLUSIONS

WSR removal was more effective at reducing wild pig density than TC, but factors such as previous exposure of this population to traditional traps and the lack of barriers to recolonization from surrounding areas may have reduced WSR efficacy. WSR can effectively reduce wild pig density to a greater extent than TC, but managers should recognize the additional time and expense necessary for implementation. Published 2023. This article is a U.S. Government work and is in the public domain in the USA. Pest Management Science published by John Wiley & Sons Ltd on behalf of Society of Chemical Industry.     

4种不同性诱剂对玉米草地贪夜蛾诱集作用

为准确掌握草地贪夜蛾成虫发生动态,筛选对当地种群专一性强、灵敏度高的性诱剂,对深圳百乐宝生物农业科技有限公司(BLB)、宁波纽康生物技术有限公司(NK)、江苏宁录科技股份有限公司(NL)、南京新安中绿生物科技有限公司(XAZL)4个厂家生产的草地贪夜蛾性诱剂在江苏盐城市大丰区进行田间诱捕效果试验,探讨草地贪夜蛾性诱剂的使用技术。结果表明:4种不同性诱剂诱芯对草地贪夜蛾的诱集效果存在明显差异。BLB诱芯和NL诱芯可以有效监测草地贪夜蛾成虫田间发生动态,羽化高峰期明显,且峰值日期一致,NK诱芯诱集的成虫虫峰不明显,XAZL诱芯零星诱到成虫,无明显成虫高峰;BLB诱芯监测期内日均诱蛾量、最高单次诱蛾量、总诱蛾量均显著高于其他3种诱芯,其总诱蛾量达136.75头,分别是NL诱芯、NK诱芯、XAZL诱芯的1.47倍、4.76倍、10.52倍;通过对BLB诱芯进行持续30 d和持续60 d的诱捕对比试验,发现BLB诱芯1~30 d内诱捕性能稳定,诱蛾量大,31~60 d内日均诱蛾量、最高单次诱蛾量、总诱蛾量均有所下降且达显著水平,尤其是50 d后诱捕量下降明显。结果表明:BLB诱芯的诱蛾量大,能够明显反映出草地贪夜蛾的羽化高峰期,符合测报要求,更适合本地区草地贪夜蛾的监测,使用该诱芯时建议30 d更换1次。     

4种性信息素产品对新发南美番茄潜叶蛾 引诱效果研究

南美番茄潜叶蛾Tuta absoluta (Meyrick)是新近传入我国的一种外来入侵害虫, 正威胁我国番茄产业, 为提高其监测和诱捕效率, 本研究采用化学生态学技术方法, 以不同性诱芯的诱蛾量占比、诱蛾量占比稳定性、诱蛾数量、性价比等为评价指标, 在鲜食番茄生产温棚开展了4种性信息素产品对该种害虫的诱蛾效果比较研究。结果显示, 来自青岛罗素生物技术有限公司(RS)、北京水光科技有限公司(SG)、北京中捷四方生物科技股份有限公司(ZJ)和中国科学院动物研究所(ZK)等4家单位/公司性信息素产品的专一性均比较强, 且对南美番茄潜叶蛾雄性成虫均有明显的引诱效果。田间诱蛾试验期间, 4种性诱芯95 d共计诱集成虫40 186头, 各种诱芯依次诱蛾量SG为11 100头、RS为10 771头、ZK为9 952头、ZJ为8 363头; 不同性诱芯诱蛾量占比中, RS显著高于其他3种性诱芯, 依次为RS>SG和ZK>ZJ, 差异明显; 逐日诱蛾量中, RS和SG比较高, 依次为RS和SG>ZK>ZJ, 差异显著; 性价比中, ZK明显高于其他3种性诱芯。诱蛾效果综合评价分析结果表明, ZK>RS>ZJ>SG。4种性诱芯均具有良好的田间应用效果。研究结果对新发南美番茄潜叶蛾监测与防控体系的构建和实施具有重要借鉴意义。     

不同性诱剂对亚洲玉米螟的引诱效果及田间应用初探

亚洲玉米螟Ostrinia furnacalis(Guenée)是危害我国玉米的重要害虫,为了探索其生物防治方法,测试了不同来源的3种诱芯(诱芯A、诱芯B和诱芯C)对陕西关中灌区玉米螟的引诱活性,并比较了水盆式和三角形两种诱捕器类型及诱捕器不同悬挂高度(1.0、1.5、1.8和2.0 m)的诱捕效果。结果表明:诱芯A(北京中捷玉米螟诱芯)和诱芯B(中国科学院动物研究所玉米螟诱芯)均对亚洲玉米螟成虫具有一定的引诱活性,以诱芯B效果更佳;两种类型诱捕器对玉米螟诱虫总数差异显著;三角形诱捕器悬挂在2.0 m处的效果优于悬挂在1.5 m处。诱芯B较适合陕西关中灌区玉米螟的预测预报及生物防控,建议在田间应用中使用三角形诱捕器,悬挂高度以1.8~2.0 m为宜。     

Evaluation of lure dispensers for fruit fly surveillance in New Zealand

BACKGROUND: Fruit flies (Diptera: Tephritidae) represent a major biosecurity threat to the horticulture sector of New Zealand, which is entirely free of these invasive pests. A nationwide surveillance programme is conducted to ensure any incursion is detected as early as possible. A review of the lure dispensers used is reported here. RESULTS: Lure dispenser emission trials found that the currently used lure plugs release lure more slowly under New Zealand subtropical to temperate climates than wafer dispensers. Subsequent trapping experiments at high altitude in Hawaii (as a mimic of New Zealand meteorological and expected fruit fly ecological conditions) compared Lynfield traps baited with the existing lure plug dispensers and newer wafer dispensers. Catches of wild Oriental fruit flies, Bactrocera dorsalis (Hendel), were 9.5-fold higher with methyl eugenol wafers than with the plugs. Recaptures of sterile melon flies, Bactrocera cucurbitae (Coquillet), were 2.6-fold higher with cuelure wafers than with the plugs. Recaptures of sterile Mediterranean fruit flies, Ceratitis capitata Weid., were not significantly higher with trimedlure wafers than with the plugs.CONCLUSIONS: Release rate and trapping experiments found new lure dispensers differed in release rate characteristics from existing dispensers under temperate and subtropical conditions, and indicated some potential for improvement in surveillance efficacy.     

铜绿丽金龟对寄主植物挥发物的触角电生理及行为反应

为深入了解铜绿丽金龟的取食行为,探索开发安全高效的植物源引诱剂,应用昆虫触角电位反应仪和Y型嗅觉仪测试其对不同寄主植物挥发物的趋向行为差异,并根据室内行为结果配制诱剂进行大田试验。结果表明:铜绿丽金龟雄虫对水杨酸甲酯和(1,1’-联环戊基)-2-酮的触角电位反应(electroantennography,EAG)值显著高于其它试剂;石竹烯和水杨酸甲酯能引起雌虫触角较强的电位反应;乙酸顺式-3-己烯酯和石竹烯分别对雄虫和雌虫有较高的嗅觉选择反应率,分别达0.95和0.94。综合EAG和嗅觉试验结果,选择对雌、雄虫均有较好引诱效果的反式-2-己烯醛、乙酸顺式-3-己烯酯、石竹烯、(1,1’-联环戊基)-2-酮和水杨酸甲酯进行田间试验,最终筛选到铜绿丽金龟雄虫的最适引诱剂为每诱芯360 mg乙酸顺式-3-己烯酯,雌虫的最适引诱剂为每诱芯360 mg石竹烯,日诱虫量分别可达33.00±1.53头和29.33±1.45头。     

Reduction of banana weevil populations with pseudostem traps

Abstract

One‐week‐old traps made from split banana pseudostems were 1.5–1.7‐fold more attractive to adult banana weevils than 2–3‐week‐old traps. In one experiment, all available pseudostem material was used for trapping, and weekly collecting of weevils over an 11‐month trapping period led to a 50% reduction in weevil catches in one field. In another field with a lower initial weevil density the trapping did not reduce weevil populations. In another experiment, the effect of intensive use of pseudostem traps and daily collecting of trapped weevils was estimated by a mark and recapture method over a period of 6 weeks. Reductions in weevil densities were calculated using a modified version of the Lincoln‐Index. Weevil populations were reduced by 48.5% after 3 weeks and by 62.5% after 6 weeks. Trapping efficiency declined during the experiment and appeared to be related to weevil population densities. This cultural control system may be effective in weevil control in small‐farm situations where labour availability is not a limiting factor.     

Floral attractants for the female soybean looper, Thysanoplusia orichalcea (Lepidoptera: Noctuidae)

BACKGROUND: The soybean looper, Thysanoplusia orichalcea (F.), is a polyphagous insect pest of vegetable crops. Indonesian in origin, it has spread to Europe, India, Africa, Australia and New Zealand. The identification of an attractant for female T. orichalcea could enable the development of alternative pest management strategies to those provided by insecticides or sex pheromones, which are often only attractive to males. RESULTS: Traps baited with synthetic lures derived from Canada thistle, Cirsium arvense (L.) Scop., floral volatiles attracted female T. orichalcea. Phenylacetaldehyde, a floral compound attractive to many Lepidoptera and present in C. arvense, was tested alone as an attractant for the soybean looper and caught significantly more female than male T. orichalcea. Trap catch was greatest when phenylacetaldehyde was combined with five prevalent volatiles present in C. arvense headspace collections: 2‐phenylethyl alcohol, methyl salicylate, dimethyl salicylate, benzaldehyde and benzyl alcohol. Twice as many female moths as males were collected. CONCLUSION: Successful trapping of female T. orichalcea in either a lure‐and‐kill or a mass trapping system may offer an effective way to manage its population size. Copyright © 2008 Society of Chemical Industry     

不同性诱剂对亚洲玉米螟的诱捕效率及在种群监测中的应用

为探索鲜食玉米田间主要害虫亚洲玉米螟Ostrinia furnacalis (Guenée)的绿色防控方法,于2018年－2019年在浙江东阳利用性诱剂对亚洲玉米螟进行了田间种群监测和诱捕效率试验,对7种亚洲玉米螟性信息素诱芯和2种诱捕器进行组合,并测试了诱捕器悬挂高度对诱捕效果的影响。结果表明,7种诱芯对亚洲玉米螟雄蛾均有引诱活性,不同诱捕器和诱芯组合的诱捕效率有显著差异,其中诱芯F、诱芯E、诱芯C分别与船型诱捕器组合及诱芯E与飞蛾诱捕器组合田间诱捕效果较好,两种诱捕器诱蛾总量无显著差异,诱捕器悬挂于1.8 m高度的效果优于1.5 m和1.2 m。田间种群监测结果表明,亚洲玉米螟在5月和9月各有一次比较典型的高峰,性诱剂可有效用于亚洲玉米螟田间种群监测。     

云南勐海蔗区草地贪夜蛾种群动态与性诱捕器诱集效果评价

为准确掌握甘蔗田草地贪夜蛾发生为害情况及种群动态,筛选适合当地种群监测的性诱捕器,通过田间人工调查不同种植方式甘蔗田草地贪夜蛾幼虫发生为害情况,采用2种类型草地贪夜蛾性诱捕器进行田间诱捕试验,探讨甘蔗田草地贪夜蛾性诱捕器的使用技术。结果表明：不论新植蔗田还是宿根蔗田,均有草地贪夜蛾发生为害,被害株率呈先缓慢上升后下降趋势,6月中下旬到7月上旬达到高峰,最高可达88.40%。甘蔗田草地贪夜蛾幼虫数量不多,宿根蔗田草地贪夜蛾幼虫数量较新植蔗田多,5月下旬到6月上旬达到高峰。监测期间不同种植方式甘蔗田草地贪夜蛾共出现5个诱集高峰期,新植蔗田草地贪夜蛾诱集高峰较宿根蔗田迟一个月出现。船形诱捕器和桶形诱捕器均可诱捕到草地贪夜蛾成虫,船形诱捕器田间诱集效果明显,但两者周均诱集量差异不显著。综合考虑各种因素,不论新植蔗田还是宿根蔗田,应加强甘蔗苗期草地贪夜蛾虫情普查和早期监测预警,在开展草地贪夜蛾监测时建议使用桶形诱捕器,在实际防治中结合甘蔗绵蚜防控采用植保无人机科学施药,防早防小,以达到最好的防治效果。     

The role of community composition in grassland response to two methods of exotic forb removal

Invasive plants can seriously threaten biodiversity and ecosystem function. Thus, controlling the abundance and mitigating the deleterious effects of invasive plants is imperative. The effectiveness of removal methods could vary based on potential damage to non‐target species and on the ecological context of invasion. For example, species‐poor communities might benefit disproportionately from invasive removal because they tend to be more heavily invaded than species‐rich communities. In this study, we tested the efficacy of two common methods of invasive plant control, hand removal and 2,4‐D herbicide application, against the invasive forb, Galium verum. We further tested whether the community response to G. verum removal varied across communities that differed in native grass richness (one, three or six species) and composition. Grass diversity did not interact with G. verum removal to influence any response. Instead, hand removal and herbicide application each reduced G. verum stem density by >50% relative to controls. Furthermore, hand removal of G. verum increased species richness by 25% relative to controls and herbicide‐sprayed plots. Despite this benefit, hand removal is labour‐intensive and impractical for large areas. These results also suggest that applying herbicide may control G. verum spread without substantially reducing forb diversity in invaded tallgrass prairie. Thus, herbicide application may be most suitable for grasslands with low native forb diversity, especially in managed grasslands and pastures where maintaining native forb diversity is a lower priority than maintaining high grass productivity.     

Efficacy of attract‐and‐kill devices for the control of Ceratitis capitata

BACKGROUND: The control of Ceratitis capitata Wiedemann traditionally has relied on chemical control with organophosphate insecticides. The use of many of these substances has been banned by new European directives; therefore, the development of new control methods is essential to manage this pest. Bait sprays with spinosad, mass trapping and lure‐and‐kill techniques have been the base for new integrated pest management programmes. In this study, a 2 year field trial was conducted in two citrus areas to test the efficacy of attract‐and‐kill devices against mass trapping and spinosad‐plus‐bait treatments. RESULTS: The Magnet^® MED attract‐and‐kill device, Spintor^® treatments and mass trapping achieved good control of C. capitata populations, as confirmed by low percentages of damaged fruit in the assessments performed during the harvest period. On the other hand, fly population levels on plots treated with other attract‐and‐kill prototype devices increased more than threefold by comparison with the populations recorded in the rest of the treated plots. The same effect was observed for fruit damage, with 6–8 times less damage with Magnet^® MED and spinosad treatments, respectively, than with the attract‐and‐kill prototype devices. CONCLUSION: By using an effective attractant, conventional trapping systems can be replaced with cheaper and easier‐to‐handle attract‐and‐kill devices. The efficacy of these devices and their advantages over conventional mass trapping systems are discussed. © 2012 Society of Chemical Industry     

Do lethal trap devices threaten foot-hold trap capture efficacy?

Foot-hold trapping is an important tool used in pest management programs in countries such as Australia, New Zealand and in North America. Research on humane trapping methods including the addition of sedatives (Tranquilizer Trap Device) and toxins (Lethal Trap Device) to foot-hold traps to improve the welfare of trapped pest animals is important. Lethal Trap Devices (LTD) are being tested in Australia to determine if deploying a toxin with a foot-hold trap is effective at delivering a lethal dose of toxin to trapped predators. This study aimed to test whether fitting an LTD to two different foot-hold jaw traps (Victor Soft catch #3 and Bridger #5) would affect the jaw closure time and as such affect capture rates. We found that two spring Victor Soft catch traps were faster (20.91, SD 0.72 ms) than four spring Bridger #5 traps (26.79, SD 0.48 ms) even when fitted with a Lethal Trap Device. Fitting a Lethal Trap Device to either of these trap models did not affect closure time and as such would not have any effect on capture efficacy.     

褐梗天牛聚集-性信息素诱捕效果评价及应用

褐梗天牛Arhopalus rusticus是一种严重为害针叶树的钻蛀性害虫,近年来在我国胶东沿海松材线虫病疫区黑松林严重发生。本研究以ZL-3型寄主利它素引诱剂诱芯为基础,配合褐梗天牛聚集-性信息素,在烟台黑松林中进行诱捕效果及其应用试验。结果发现,ZL-3型寄主利它素引诱剂诱芯对褐梗天牛诱捕效果较好,单个诱芯诱捕量高于APF-1型诱芯;林间监测时间从褐梗天牛羽化期一直持续到9月末,在6月初和7月中旬有两个羽化高峰;平均每个诱捕器可诱捕天牛126头,褐梗天牛与松褐天牛的比例为4.28:1;褐梗天牛聚集-性信息素与寄主利它素引诱剂相结合可以显著增加诱捕效果。由于ZL-3型寄主利它素引诱剂诱芯对褐梗天牛和松褐天牛都具有较好的诱捕效果,可以用于褐梗天牛和松褐天牛的种群监测和大量诱杀防治,而且与褐梗天牛聚集-性信息素相结合诱捕效果更强,具有广阔的应用前景。     

实蝇高引诱性酵母菌的分离和筛选

实蝇是一类重要的检疫性园艺害虫,易造成果实未熟先黄、脱落和腐烂。利用饵剂进行成虫诱杀是防治实蝇最有效的手段之一,而国内目前普遍缺乏绿色高效的实蝇饵剂。多种微生物被报道对实蝇具有引诱能力,配合诱捕器使用,可以成为一种高效绿色的成虫防治技术。本研究从海南、广东、广西、江西、浙江、湖北等地的柑橘、番石榴、杨桃等虫果及寄主叶片上分离获得了357株酵母菌菌株,通过26S rDNA测序,鉴定出这些菌株分属于8个属、25个种,包含假丝酵母属Candida(6种)、有孢汉逊酵母属Hanseniaspora(5种)、毕赤酵母属Pichia(9种)、酿酒酵母属Saccharomyces(1种)、有孢圆酵母属Torulaspora(1种)、子囊酵母属Galactomyces (1种)、Starmerella属(1种)和威克汉姆酵母属Wickerhamomyces属(1种)。在所有分离培养的酵母菌中,优势种是仙人掌有孢汉逊酵母Hanseniaspora opuntiae,优势度指数为0.22。在模拟田间环境的半封闭网室中测定357株酵母菌株发酵液对南亚果实蝇Zeugodacus tau和橘小实蝇Bactrocera dorsalis雌雄成虫的引诱活性,初步筛选获得发酵液引诱活性较好的菌株12株,其引诱南亚果实蝇和橘小实蝇的数量分别是阳性对照的1.0~3.7倍和3.2~7.8倍。进一步筛选发现克鲁维毕赤酵母Pichia kluyveri ZJGJA31和球形环孢菌Torulaspora globosa HBMTA13发酵液对南亚果实蝇田间引诱能力分别为(10.6±1.7)头/诱捕器和(6.8±1.1)头/诱捕器;对橘小实蝇田间引诱能力分别为(9.1±1.1)头/诱捕器和(23.0±2.9)/诱捕器。结果表明,P.kluyveri ZJGJA31和T.globosa HBMTA13发酵液具有被开发成实蝇引诱剂的潜在价值。     

Eliciting a predatory response in the eastern corn snake (Pantherophis guttatus) using live and inanimate sensory stimuli: implications for managing invasive populations

North America's eastern corn snake (Pantherophis guttatus) has been introduced to several islands throughout the Caribbean and Australasia where it poses a significant threat to native wildlife. Invasive snake control programmes often involve trapping with live bait, a practice that, as well as being costly and labour intensive, raises welfare and ethical concerns. This study assessed corn snake response to live and inanimate sensory stimuli in an attempt to inform possible future trapping of the species and the development of alternative trap lures. We exposed nine individuals to sensory cues in the form of odour, visual, vibration and combined stimuli and measured the response as rate of tongue-flick (RTF). The RTF was significantly higher in odour and combined cues treatments, and there was no significant difference in RTF between live and inanimate cues during odour treatments. Our findings suggest chemical cues are of primary importance in initiating investigatory behaviours and that an inanimate odour stimulus, absent of simultaneous visual and vibratory cues, is potentially a low-cost alternative trap lure for the control of invasive corn snake populations.     

Evaluating sex-pheromone- and kairomone-based lures for attracting codling moth adults in mating disruption versus conventionally managed apple orchards in Pennsylvania

BACKGROUND: Effectiveness of different types of commercial sex‐pheromone‐ and kairomone‐based lures for attracting codling moth adults may vary under different pest management practices. The attractiveness of four types of codling moth (CM) lures (CM L2 Long‐Life^®, CM 10X Megalure^®, Pherocon CM DA^® and Pherocon CM‐DA Combo^®) was evaluated in commercial apple orchards either treated with sex pheromone mating disruption (MD) or only conventional insecticides (non‐MD) in Adams County, Pennsylvania, in 2006 and 2007. RESULTS: CM DA Combo lure was most effective in terms of mean seasonal weekly moth capture as well as mean cumulative moth capture in MD orchards. In both years, the CM L2 lure was as attractive to adult moths as the CM DA Combo lure in non‐MD orchards. The CM DA and CM 10X lures caught significantly fewer moths in both MD and non‐MD orchards compared with the CM DA Combo lure. CONCLUSIONS: ON the basis of mean seasonal weekly moth capture as well as mean cumulative moth capture, the CM DA Combo and CM L2 lures were found to be significantly more effective for monitoring CM adults in both MD and non‐MD orchards. In contrast, the CM DA and CM 10X lures were not as effective in either type of orchard. Copyright © 2011 Society of Chemical Industry     

新型信息素诱剂对新疆梨园蛾类害虫的诱捕效果评价

利用性诱剂干扰交配或诱杀钻蛀性蛾类害虫是果园害虫生物防治的重要途径之一,研发既诱雄蛾也诱雌蛾的新型诱剂近年来颇受关注。本研究在苹果蠹蛾性信息素基础上,加入寄主植物挥发物--梨酯、苯乙酮、香叶醇、冬青油和苯乙醇等制成若干配方,在南疆两地(库尔勒与阿克苏地区)梨园中于蛾类害虫发生的早期和中期进行诱捕试验。对苹果蠹蛾诱集结果表明,虽然与仅含性信息素配方相比,添加植物挥发物的配方可诱集到雌蛾,但诱集虫量较少。对梨小食心虫的诱集结果表明,在库尔勒,大部分配方诱到的虫量多于商品诱剂(对照),其中,在性信息素中添加少量植物挥发性物质的配方诱集的虫量总体较多;在阿克苏,所有配方诱集的虫量均多于对照,在性信息素中是否添加植物挥发物质对诱集效果总体上没有影响。对优斑螟的诱集结果表明,仅含2种性信息素物质的配方诱集的虫量最大,与加入少量梨脂的配方接近。果园诱集试验结果说明,在苹果蠹蛾性信息素中添加梨脂等多种寄主植物挥发物的供试配方诱集雌蛾效果不理想,但对多种混合发生的夜蛾害虫雄性具有较好诱集效果。     

哈尔滨地区不同亚洲玉米螟性诱剂诱捕效果研究

为了探索亚洲玉米螟性诱剂在哈尔滨地区的诱捕效果, 于2019年和2020年在黑龙江哈尔滨地区开展不同品牌诱芯、不同类型诱捕器及不同诱芯悬挂高度处理的亚洲玉米螟田间诱捕试验。结果表明, 3种诱芯处理对田间亚洲玉米螟雄蛾表现出不同的诱虫活性, 诱芯A诱捕到的玉米螟雄蛾数量显著高于诱芯B和诱芯C, 是诱芯B诱蛾量的1.38倍, 诱芯C诱蛾量的1.62倍; 水盆式诱捕器对玉米螟雄蛾诱捕效率明显高于倒漏斗式诱捕器, 诱捕到玉米螟雄蛾数量是倒漏斗式诱捕器的1.94倍。2019年和2020年诱芯不同悬挂高度处理诱捕到玉米螟雄蛾的数量由多到少的顺序为0.8、0.4、1.3、1.8 m和0 m, 悬挂高度0.8 m处理诱捕到的玉米螟雄蛾数量显著高于其他处理。综合以上结果, 使用水盆式诱捕器, 将诱芯A悬挂至0.8 m高度更适合哈尔滨地区田间玉米螟的防治和种群监测。