共查询到20条相似文献，搜索用时 156 毫秒
1.
葡萄透翅蛾与虎天牛不同危害特点及其防治射阳县多管局祁祥春李利亚葡萄透翅蛾与葡萄虎天牛都是蛀食葡萄枝蔓的主要害虫，但这两种害虫不论是从形态特征上还是从危害特点上看，都有着明显区别，因此对它们的防治方法也不相同。一、形态特征葡萄透翅蛾是属鳞翅目透羽蛾科，... 相似文献
2.
杨树蛀干害虫主要有光肩星天牛、黄斑星天牛、桑天牛、刺角天牛、青杨天牛、杨干象、蒙古木蠢蛾、东方木蠢蛾、白杨透翅蛾等,其中以天牛危害为最。杨树蛀干害虫由于隐蔽在树干内生活,防治难度大,造成严重的经济损失,对杨树天牛等蛀干害虫要采取综合的防治措施。 相似文献
3.
该文概述了辽宁省补充森林植物检疫对象，即白杨透翅蛾Parathrene tabanifrmis Rottenberg、青杨楔天牛Saperda popunea Linnaeus、白蜡虫Ericerus pela Chavannes、蔗扁蝗Opogona sacchari Borjer、枣疯病Mycoplasma-like organism（简称MLO）的分布、寄主植物、危害情况及检疫措施。 相似文献
4.
蛀干害虫综合防治措施 总被引：1，自引：1，他引：0
危害林木钻蛀枝干的害虫主要包括天牛科的光肩星天牛、双条杉天牛,小蠹科小蠹虫类,象甲科杨干象甲,螟蛾科松梢螟,透翅蛾科白杨透翅蛾和木蠹蛾科芳香木蠹蛾等。其主要危害杨、柳、榆、槐、油松、樟子松、苹果树和梨树。这类害虫的幼虫钻蛀树干,被害处组织增生形成瘤状虫瘿,易造成树干枯萎,秋冬季节常引起风折,同时影响林木正常生长,树木畸形,影响成材、降低木材的商品价值。蛀食顶芽和枝梢,顶芽停长、徒生侧枝。此类害虫常以幼虫在枝、干里的隧道内越冬,幼虫在韧皮部、木质部内蛀成坑道,成虫羽化期分散, 相似文献
5.
6.
7.
湖北省林科院林业科技信息所 《湖北林业科技》2005,(2):48-48
在杨树人工林中,以杨干象甲、白杨透翅蛾、青杨天牛 3 种蛀干害虫发生面积大,危害严重,防治困难。由于蛀干害虫的猖獗危害,致使林木成片死亡,防护林“带断网破”。经过对蛀干害虫多年的综合治理,取得了较好的防治效果,积累了—些经验。对3种蛀干害虫的治理,除要加强苗木产地检疫工作外,还应抓好治理的技术措施。1 白杨透翅蛾防治技术措施(1)诱捕时间:在有代表性的林地内,提前诱捕观察。当诱到第1只雄蛾时,即开始大面积防治。(2)诱捕方法:采用涂干钉诱芯法。在杨树林中,诱捕点棋盘式设置,0 2 ~ 0 3hm2 设1个,林缘适当多设一些。在农防林… 相似文献
8.
白杨透翅蛾别名杨小透翅蛾、杨暗透翅蛾、串皮虫，鳞翅目，透翅蛾科。主要分布在吉林、辽宁、内蒙古、山东、陕西等地。寄主主要为杨柳科、蔷薇科植物。 相似文献
9.
在晋北地区现有林地中，杨树在公路绿化和城市园林绿地中约占70％以上。随着林地面积不断扩大，危害杨树的各种有害生物也接踵而至，特别是隐蔽性强的钻蛀性害虫尤为严重。晋北地区对杨树危害严重的钻蛀性害虫有光肩星天牛、白杨透翅蛾、蒙古木蠹蛾、杨园蚧等。 相似文献
10.
11.
黄龙林区引进瑞典能源柳的适应性及生长调查 总被引：2，自引：0，他引：2
以黄龙林区引种的8个瑞典能源柳无性系为研究对象,开展了形态学特征、物候、病虫害与日灼、1a生苗木生长量等调查。结果表明,1a生瑞典能源柳无性系扦插苗,以瑞能A、瑞能C和瑞能E高径生长量最大;病虫害和日灼对引种能源柳危害比较小;瑞典能源柳在3月中下旬开始叶芽萌动,展叶期一般为1周左右,多数开花无性系花期超过1月;瑞能2和瑞能4花期长,观赏价值高,更适于作为园林绿化树种;清水浸泡插穗以瑞能A和瑞能成活率最高,分别为96%和93%,其它6个无性系成活率介于73%～89%之间。 相似文献
12.
Aude Gilabert Bertrand Gauffre Nicolas Parisey Jean-François Le Gallic Patrick Lhomme Vincent Bretagnolle Charles-Antoine Dedryver Jacques Baudry Manuel Plantegenest 《Journal of pest science》2017,90(2):447-457
Ecological control has often focused on factors enhancing control of pests by their natural enemies, while factors reducing the colonization rate of crops by pests have been comparatively neglected. We present an approach to assess landscape influence on the intensity of wheat colonization by a major crop pest, the aphid Rhopalosiphum padi. We used trays containing wheat seedlings to monitor field colonization by R. padi and barley yellow dwarf viruses’ transmission in two areas in France in autumn. We assessed the influence of landscape components likely affecting aphid colonization, i.e. maize and grasslands as source of migrants on the number of aphids landing per tray, as well as the host plant of origin and the viruliferous potential of migrants. During the survey, maize was the main source of migrants. Virus transmission was detected in a few cases (4 % positive assays). Colonization was increased by the presence of maize, but reduced by the presence of grasslands at the landscape scale considered here (i.e. at a radius of 1000 m). Our study contributes to a better understanding of disease dynamics in agricultural landscapes. By identifying features of the landscape that surrounds fields and affects these dynamics, growers can develop more efficient crop protection strategies relying on habitat manipulation and rational use of pesticides. 相似文献
13.
14.
15.
天津开发区园林植物害虫无公害防治技术 总被引：3，自引：0，他引：3
通过对天津开发区园林害虫的种类和危害情况的调查，摸清了开发区园林主要害虫有食叶害虫、蛀干害虫、刺吸害虫和地下害虫4大类；遵循安全、保护环境和维护生态平衡的原则，摸索出生物防治方法、信息素的应用、植物农药烟参碱的应用、仿生农药灭幼脲系列药剂的应用、无机农药的应用、人工和物理机械方法的应用、栽培防治方法的应用及植物检疫方法的应用的几种无公害防治方法，防止了环境污染和副作用的产生。 相似文献
16.
通过病虫害普查，初步摸清尤溪县世行项目林主要病虫种类有１５种，其中杉木缩顶病、杉木炭疽病、马尾松赤枯病及微红梢斑螟为害最为严重。病虫的发生与森林结构、立地条件、林分状况、森林采伐和苗木带病等因子有关。 相似文献
17.
18.
One-year-old interior spruce (Picea glauca (Moench) Voss × Picea engelmannii Parry) spring-stock and summer-stock were grown under two phosphorus (P) fertility regimes, with (+P) or without (–P), followed by a simulated winter, and a second growing period under an adequate fertility regime in a controlled environment room. The two stock-types differed in their response to low P availability. For spring-stock, morphological development, phosphorus-use efficiency (PUE) and P specific absorption rate (SAR) were similar between –P and +P seedlings. For summer-stock, –P seedlings compared to +P seedlings had lower (p 0.05) morphological development, but greater PUE and SAR. For both stock-types, P content increased in +P seedlings, remained low in –P seedlings, and P concentration decreased in nursery-needles (i.e., formed in the nursery) of –P seedlings. The difference in stock-type response to low phosphorus availability (–P) was attributed to internal supply of P and it's retranslocation. Assimilation (A) of CO2 in nursery-needles was similar between –P and +P seedlings for both stock-types. For spring-stock, +P seedlings had greater A in new-needles (i.e., needles formed during the trial) than –P seedlings. It was recommended that the spring-stock be selected over summer-stock for sites low in P availability. 相似文献
19.
20.
Significant reductions in needle water content were observed in white spruce (Picea glauca (Moench) Voss), black spruce (Picea mariana (Mill) B.S.P.), and jack pine (Pinus banksiana Lamb.) seedlings in response to a 10-day drought, although turgor was apparently maintained. When the seedlings were re-watered after the drought, jack pine needles regained their original saturated volume, whereas white spruce and black spruce needles did not. Significant drought-induced reductions in turgor-loss volume (i.e., tissue volume at the point of turgor loss) were observed in shoots of all three species, especially jack pine. Repeated exposure to 7 days of drought or treatment with the cytochrome P(450) inhibitor, paclobutrazol ((2RS,3RS)-1-(4-chlorophenyl)-4,4-dimethyl-2-(1,2,4-triazol-1-yl)-pentan-3-ol), reduced seedling height relative to that of untreated controls in all three species. The reductions in saturated and turgor-loss needle volumes in the paclobutrazol-treated seedlings were comparable with those of seedlings subjected to a 10-day drought. The treatment-induced reductions in shoot and needle water contents enabled seedlings to maintain turgor with tissue volumes close to, or below, the turgor-loss volume of untreated seedlings. Paclobutrazol-treated seedlings subsequently survived drought treatments that were lethal to untreated seedlings. 相似文献