共查询到18条相似文献，搜索用时 203 毫秒
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在内蒙古阿龙山林业局研究了稠李巢蛾性引诱剂应用技术,通过在稠李林中的对性引诱剂诱捕器设置不同高度、距离稠李林边缘的不同距离的诱集效果及稠李巢蛾昼夜反应节律的系统研究,掌握性引诱剂诱捕稠李巢蛾雄蛾相关应用技术。在诱捕器悬挂高度方面,性引诱剂诱捕器设置高度以0.5 m为最佳,雄蛾诱集量最大达到78.22头/器·d;设置诱捕器距离林缘50~300 m均可诱集到雄蛾,最佳诱蛾距离为100 m左右,测算最远诱捕距离为330 m;首次掌握了性引诱剂诱捕器对稠李巢蛾雄蛾昼夜活动节律,上午5:00~11:00为雄蛾主要活动期,傍晚19:00~23:00也有一个活动小高潮,这表明性引诱剂诱捕器可以掌握稠李巢蛾成虫的每天的活动节律。以上应用技术研究可以为稠李巢蛾的监测预报及防治决策提供重要依据。 相似文献
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为了有效地控制舞毒蛾Lymantria dispar的危害及保护自然天敌,研究了利用单一波长的太阳能灯诱捕舞毒蛾的方法。采用林间放置320 nm至585 nm不同波长的太阳能灯、不同颜色诱捕容器、长波与短波灯不同距离组合、太阳能灯与频振式杀虫灯对非靶标昆虫诱虫效果的比较等方法,确定灯光诱捕舞毒蛾的最佳技术。结果表明,340 nm太阳能灯诱捕舞毒蛾总量和雄虫量最大,且显著大于对照灯的相应诱捕量;380 nm太阳能灯诱捕雌虫量最大。诱捕舞毒蛾的最适时间为19∶30—21∶30。银色容器诱捕到的舞毒蛾最多。长波灯与短波灯相距50 m时,短波(340 nm)诱虫灯的诱捕量最大,且显著大于其他距离和短波对照灯的诱捕量,在此距离条件下,长波(520 nm)诱虫灯的诱捕量最小。单一波长的太阳能灯对非靶标昆虫的杀灭作用显著小于频振式杀虫灯。340nm太阳能灯可作为诱捕舞毒蛾的首选灯具,通过与筛选出的最适时间、敏感容器颜色和距离组合,能够在林间达到较好的诱捕效果。还可以通过长短波长的组合,在港口提供长波照明和短波诱虫,实现既减少舞毒蛾成虫和卵块随船迁移又兼顾亮化的双重目的。 相似文献
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《林业实用技术》2017,(3)
为了明确不同信息素诱剂和诱捕器对松墨天牛(Monochamus alternatus Hope)的诱捕效果,以APF-Ⅰ持久型(A)、APF-Ⅰ持久增强型(B)和F1型(C)3种诱剂、以及ZM-60型(D)和BF-1型(E)2种撞板式诱捕器为研究对象在林间进行了诱杀松墨天牛试验。结果表明:使用D诱捕器,B诱剂诱捕量为A诱剂和C诱剂的1.53倍和1.84倍,差异显著;使用E诱捕器,B诱剂诱捕量为A诱剂和C诱剂的1.97倍和2.16倍,差异显著;使用相同诱剂,D诱捕器和E诱捕器的诱捕量均无显著差异。3种诱剂诱到的松墨天牛雌虫分别是雄虫的1.51~1.67倍,平均1.60倍。因此认为,诱剂B优于A诱剂和C诱剂;建议生产上能优先选其用于松墨天牛监测与防治。 相似文献
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在苹果蠹蛾(Cydia pomonella L.)和梨小食心虫[Grapholita molesta(Busck)]混合发生的梨园,应用苹果蠹蛾性诱剂、梨小食心虫性诱剂监测和防治两种害虫。试验设置3组诱捕器,分别为苹果蠹蛾性诱剂诱芯单独放置、梨小食心虫性诱剂诱芯单独放置、以及同一诱捕器同时放置苹果蠹蛾和梨小食心虫性诱剂诱芯,比较不同诱捕器处理诱蛾效果差异。试验结果表明,试验梨园没有诱捕到苹果蠹蛾成虫,即没有苹果蠹蛾发生;但苹果蠹蛾性诱剂能显著提高梨小食心虫性诱剂的诱虫能力。本研究表明苹果蠹蛾性诱剂对梨小食心虫性诱剂诱虫效果具有显著的增效作用,在田间应用可以更好的监测和控制梨小食心虫的发生。 相似文献
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2014—2015年在霞浦县松城街道马尾松纯林内101~200m、201~300m和301~400m~3个不同海拔高度分别设置4个APF-I型松墨天牛引诱剂和相同的配套诱捕器诱捕松墨天牛,通过2014年和2015年不同海拔高度的诱虫数量,分析霞浦县内松墨天牛诱捕器的诱捕效果和设置适宜海拔高度。结果表明:2014年设置在海拔高度101~200m和201~300m的松墨天牛诱捕器诱捕效果极显著(P0.01)高于设置在海拔高度301~400m的诱捕器;2015年设置在201~300m之间的松墨天牛诱捕器诱捕效果显著(P0.05)高于设置在海拔高度101~200m和301~400m的诱捕器。霞浦县松墨天牛诱捕器挂设最佳海拔在201~300m之间。 相似文献
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Trapping of Lymantria monacha L. (Lep., Lymantriidae) in various pheromone traps
Five type of traps containing the Disparlure-pheromone were tested on the nun moth in two regions of Bohemia. Two of these traps, with the sticky inner surface of 330 and 400 qcm, were made by the Zoecon Corporation, the other three were plates with one stikcy side (2500, 5000 and 10 000 qcm).Catches on the 10 000 qcm plates were 11 times higher than in the traps with a small sticky surface. This finding indicates that catches in small traps do not give an accurate picture of the population density of males throughout their flight. This could be explained by a high concentration of the pheromone in the immediate vicinity of the trap, preventing the attracted males from finding the source of attraction in the trap. 相似文献
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【目的】明确聚集信息素对横坑切梢小蠹诱捕量与不同危害程度的云南松林有虫梢率之间的关系,为横坑切梢小蠹种群监测与防治提供技术支持。【方法】采用随机抽样法,调查云南省祥云县普淜镇和下庄镇2个样地云南松林内切梢小蠹的危害情况,并在由梢部危害转至干部危害期利用聚集信息素诱捕横坑切梢小蠹成虫,分析横坑切梢小蠹在梢转干时期的种群变化规律及有虫梢率与诱捕量之间的关系。【结果】普淜和下庄2个样地横坑切梢小蠹和云南切梢小蠹是优势种。普淜样地中横坑切梢小蠹占49. 75%,雌雄比为1. 06∶1;云南切梢小蠹占50. 25%,雌雄比为1. 32∶1。下庄样地中横坑切梢小蠹占54%,雌雄比为1. 45∶1;云南切梢小蠹占46%,雌雄比为1. 88∶1。2样地中横坑切梢小蠹蛀梢期树冠有虫梢率从上到下依次降低,普淜样地有虫梢率约为下庄样地的10倍。2样地横坑切梢小蠹的诱捕量在整个梢转干期呈现相同的规律,成虫扬飞均始于11月中旬,终见于翌年5月下旬,扬飞高峰期是3月初至4月下旬。诱捕器中天敌种群数量与横坑切梢小蠹数量有明显的跟随现象。诱捕器中横坑切梢小蠹雌雄性比在1∶1. 09～1. 71之间,雄性个体数量明显多于雌性。横坑切梢小蠹林间有虫梢率(y)与诱捕量(x)之间呈线性正相关,其中在高虫口密度普淜样地拟合函数关系式为y=0. 002 4x+0. 060 1(R^2=0. 67),低虫口密度下庄样地拟合函数关系式为y=0. 003 2x-0. 004 3(R^2=0. 71)。【结论】了解高、低虫口密度下横坑切梢小蠹在云南松树冠中的分布规律,利用聚集信息素诱捕可作为监测横坑切梢小蠹种群变化的有效方法,且诱捕量与林间有虫梢率呈线性正相关,诱捕量可反应横坑切梢小蠹在蛀梢期的有虫梢率。 相似文献
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Migration of the males of nun moth was investigated on the area of 18 sq. km networked with 110 pheromone traps. After 24 hours the males, marked with different colours, were recorded at the distance of 280 m from the place of release and after 10–14 days they were found at a distance reaching even more than 3500 m. The marked specimens were captured still 24 days after release, which indicates that the males of the nun moth can live in the nature for almost a month. 相似文献
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为充分应对北美植物保护组织植物检疫措施第33号标准,笔者将我国口岸2011-2017年利用舞毒蛾Lymantria dispar性信息素监测种群发生情况进行了总结,包括具体监测口岸信息、诱捕器数量、年诱捕量,分析各口岸年平均诱捕量与当地平均气温、平均湿度和平均降水量之间的关系。结果表明:空间因素和气候因素共同决定了舞毒蛾发生情况,在R^2=25.1%水平上,空间因素单独贡献了6.9%的影响,而气候因素单独贡献了10.3%的影响,两者综合影响了7.9%;温度和湿度两个气候因子对舞毒蛾发生影响较大。亚洲型舞毒蛾在口岸5 km陆地范围内广泛发生,舞毒蛾输出风险依然存在,应建立国内外有害生物发生动态监测信息平台,以便更好实施有害生物综合防控。 相似文献
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苏云金杆菌是一种重要的微生物杀虫剂，而且能够编码几种昆虫毒蛋白基因。本文概述 了苏云金杆菌在森林害虫综合治理中的应用。苏云金杆菌HD1菌株及其衍生物被广泛用于防 治各种森林害虫，如Lymantria dispar, Choristoneura fumiferana, Thaumetopoea pityo campa, Rhyacionia buoliana和Lymantria monacha。文章提供了Bt毒蛋白基因在林木中的 构建和表达方面的研究进展并对Bt产品在森林害虫综合治理上的应用前景及限制因素进行了 初步讨论。 相似文献
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Dr. Dr. U. Skatulla 《Journal of pest science》1989,62(3):50-53
The dynamic of a population of the nun moth (L. monacha) was monitored by the aid of pheromone traps for four years in a pine forest in Bavaria. During this time the population ofL. monacha came from the latency to an outbreak. In this way it was possible to show a correlation between the trapped moths and the density of the population for each phase of the gradation. From this results it could be concluded that about 60–70 males per trap and night (maximum) signify a critical threshold value. A method to predict the development of a nun moth population by pheromone traps is proposed. 相似文献
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Methodical problems of Nun moth trapping (Lepidoptera, Lymantriidae) in various pheromone-traps
Various types of pheromone traps, which were used for catching ofLymantria monacha L., did not prove to be well suited either for checking of the occurrence of the pest and for its prognosis, or for estimating the size of the Nun moth population. Much more reliable data were obtained by using simple plates made of zinc sheet of size 50 × 50 cm or 50 × 100 cm, which were either on one or both sides covered with glue and sometimes they had an opening in the middle (10 × 10 cm) to allow spreading of the pheromone on both sides of the plate.Eight series of experiments, the results of which are given in the text, in the figures and tables, showed that the method of using pheromone traps renders new possibilities not only for prognosis and checking of the occurence of the Nun moth, but also for research on its ecology and ethology. It enables to investigate mating behavior and ecological problems even at the non-escape-phase of the pest. Further elaboration of this method in future years will make possible to derive from the data, obtained from the pheromene traps, data on the abundance of Nun moth in forest growths and on its flight distances. 相似文献