柑桔黑刺粉虱对几种药剂的毒力测定

柑桔黑刺粉虱对几种药剂的毒力测定华中农业大学（４３００７０）王沫张全应丽爱黑刺粉虱是柑桔树上的主要害虫之一，当条件适宜时，繁殖极快，树叶由少量灰白点至大片失绿甚至枯萎落叶。由于黑刺粉虱若虫独特的形态特征和取食方式，在对其进行毒力测定的过程中存在死活判...     

万州区柑橘粉虱和黑刺粉虱的发生动态规律

柑橘粉虱、黑刺粉虱是柑橘上的重要害虫,为深入了解2种粉虱的发生时期、发生为害程度和田间种群动态,采取田间系统调查与黄板诱捕监测相结合的方法,综合分析2种害虫在田间的发生规律,为科学控制害虫提供理论依据。     

桔刺粉虱的发生及防治

桔刺粉虱(Aleurocanthus spiniferus Quani-tance)属同翅目(Homoptera)粉虱科(Aleyrodidaeo),在我国南方地区均有分布,为害柑桔、茶树、枇杷、龙眼、柿、葡萄、蔷蔽、玫瑰等数十种植物.在柑桔上,桔刺粉虱过去为害较轻,属于次要害虫.但自90年代以来,在广东省广州、东莞、博罗、普宁等柑桔主产区,以及湖南、江西等部分地区严重发生,已成为柑桔的主要害虫,给柑桔生产带来严重威胁.据调查,该虫1993年在广东柑桔上发生为害面积达1.5万公顷、在茶树上发生为害约0.3万公顷.现将桔刺粉虱的发生为害情况、生活习性、发生规律及防治措施综述如下.     

鄂西河谷地区柑桔黑刺粉虱灾变规律及应急控制技术

柑橘黑刺粉虱(Aleurocanthus woglumi Ashby)国际贸易双边协定中涉及限定性的有害生物,自1995年以后上升为主要害虫,而且诱发严重的煤烟病,给生产造成损失很大。1998年以后,我们对该虫的灾变规律、控制技术进行了研究,结果表明,柑橘黑刺粉虱在鄂西河谷地区1年发生4代,越冬期虫态单一;通过试验,黑刺粉虱的最佳防治时期为：秋、冬、春连旱年份第1代在4月中旬至5月中旬,暖冬年份2月中旬至3月中旬防治越冬代效果较好;同时还试验筛选出了3个防治黑刺粉虱的农药配方,通过推广应用,取得了很好的经济效益和社会效益。     

蜜柚柑桔粉虱发生为害特点及防治

琯溪蜜柚柑桔粉虱是同翅目粉虱科害虫,学名为柑桔粉虱,又称桔黄粉虱,桔绿粉虱,通草粉虱,是一种群体杂食性害虫,传播快易暴发为害.1998年在平和县小溪新桥村个别柚园发生为害,1999年扩大到附近6个村,2000年在小溪、山格、文峰、坂仔、南胜、霞寨等乡(镇)发生,8～9月局部暴发为害.2001年3月小溪普遍发生为害,5-8月份全县暴发,2002年全县大发生.柑桔粉虱为害后诱发煤烟病,造成叶片卷缩、枝叶枯死,严重影响蜜柚生产.针对害虫发生为害特点,经过几年试验、示范总结出一套综合防治技术措施.     

柑桔粉虱的发生成因分析及防控技术

柑桔粉虱(Dialeurodes cvtri Ashmead)又名桔绿粉虱、桔黄粉虱,主要为害柑桔、柿、桅子和丁香等。柑桔粉虱在三峡库区秭归县柑桔产区发生越来越严重,已上升为柑桔产区的主要害虫,柑桔园普遍发生。2004年、2005年、2006年连续3年中等至中等偏重发生,局部柑桔产区大发生。为此,笔     

宜昌市城郊柑桔粉虱发生原因及防治方法探讨

柑桔粉虱主要为害柑桔,长期发生烟煤病的桔园一般都有发生,是产生烟煤病的主要害虫之一,通过药剂试验发现柑桔粉虱对多种药剂都较敏感,为减少农药对生态环境的影响,尽量使用矿质源杀虫荆或者是生物防治。     

柑桔粉虱在当阳市柑产区发生特点与防治

柑桔粉虱一直作为次要害虫,研究较少,但在当阳柑产区危害量。文章对柑桔粉虱发生特点和防治进行了较为系统的报道。     

2007年宜昌市柑桔病虫概况与特点

2007年宜昌市柑橘病虫发生面积累计27．93万hm^2（次）,防治面积32．4万hm^2（次）。现将2007年柑桔病虫概况与特点概述如下：近年来,宜昌市柑桔主要病虫随着农业结构的调整、优化,种植模式的改进、推广,而逐步发生演变,呈现出多样化、复杂化、爆发性特点,部分害虫主次发生互换。由于2007年气候异常,梅雨期延长,柑桔主要病虫除红蜘蛛未暴发,比预期平稳外,其它病虫均是病虫并重,整体偏重发生年份。以“两病”（炭疽病、煤烟病、）、“两蝇”（柑桔大小实蝇）、“两虱”（粉虱、黑刺粉虱）及蛀果性害虫发生为重。     

黑刺粉虱的发生、为害及其生物防治国内研究概况

黑刺粉虱Aleurocanthus spiniferus为茶园和柑桔园为害严重的粉虱种类之一。本文概述了黑刺粉虱在国内分布、寄主种类、发生与为害等,探讨了近年来生物防治在控制黑刺粉虱为害中的作用,包括寄生性天敌、捕食天敌及昆虫病原性真菌等的利用,以期为黑刺粉虱的综合治理提供参考。     

柑桔黑刺粉虱发生规律及防治

对柑桔黑刺粉虱的生活习性,发生规律,有效积温,天敌种类和药剂防治等进行了比较系统的研究,该虫在广东一般１年发生５代,第１代成虫出现份,１１月下旬以后若虫和蛹开始越冬,发育起点温度为１１．０１℃,完成了１个世代所需有效积温为７９１．２７日度。     

浙江省山地茶园蜘蛛研究初报

1979～1990年,调查了浙江省13个县(市)山地茶园蜘蛛资源,并在松阳县进行定点系统调查,共发现茶园蜘蛛24科110种;其种群数量大,占捕食性天敌的93.66％。优势种群有叉线金蝉蛛、前齿肖峭、突腹蛛一种、大井盖蛛、盖蛛一种、管巢蛛。室内饲养观察蜘蛛主要捕食假眼小绿叶蝉、黑刺粉虱、茶蚜,也捕食茶绿盲蝽以及尺蠖和卷蛾的幼虫。3种常见蜘蛛又线金蝉蛛、粽管巢蛛、毁坏管巢蛛对假眼小绿叶蝉的日捕食达8.5～11.0头,对害虫的控制能力居茶园捕食性天敌的首位,影响茶园蜘蛛种群消长的主要因子有:害虫种群变化、农药施用、农事操作及气候因子等。     

First record of Aleurocanthus spiniferus (Homoptera: Aleyrodidae) in Apulia,Southern Italy

The presence of Aleurocanthus spiniferus is reported for the first time in Italy. The orange spiny whitefly was identified in April 2008 in the Apulia region. This is also the first record of this citrus pest in Europe.     

不同栽培模式茶园黑刺粉虱发生规律

为明确北方茶园黑刺粉虱发生规律, 2016年—2017年于山东烟台系统研究了日光温室盖保温被?日光温室及露地3种栽培模式茶园黑刺粉虱发生规律?结果表明, 3种栽培模式茶园黑刺粉虱均以若虫在叶片背面越冬, 1年发生4代, 世代重叠严重?日光温室盖保温被栽培模式越冬代成虫羽化较日光温室和露地栽培发生早28 d左右, 日光温室和露地栽培模式下黑刺粉虱发生期差异不显著?3种栽培模式茶园黑刺粉虱成虫全年均有4次发生高峰期, 第1次高峰期日光温室盖保温被栽培模式较日光温室早20 d左右, 日光温室较露地早30 d左右?黑刺粉虱发生量依次为日光温室>露地>日光温室盖保温被, 均于10月上旬陆续以3龄若虫在叶片背面越冬?     

Presence of the invasive whitefly Aleurocanthus spiniferus (Hemiptera: Aleyrodidae) in Greece

Aleurocanthus spiniferus (Quaintance) (Hemiptera: Aleyrodidae), commonly known as the citrus (or orange) spiny whitefly, is an important pest of various economic crops such as citrus and tea and causes severe economic losses. It is reported for the first time in Greece, in the island of Corfu (North‐West Greece) on sweet orange trees (Citrus sinensis). Morphological and molecular data has been used for species identification. Sequences of the mitochondrial cytochrome oxidase I (COI) gene from Greek populations have been compared with sequences of the species from Italy and Montenegro, as well as with COI sequences retrieved from GenBank, to examine the genetic diversity of the species. Based on the preliminary results, it appears that the population from Corfu probably arose through several independent introductions.     

不同种类色板与添加物协同对槟榔园害虫诱集的初步效果

为筛选出适宜的槟榔园粘虫板种类, 选择了3种粘板和4种添加物在槟榔园开展了粘虫板对害虫诱集效果研究。结果表明, 黄、蓝、黄蓝混合粘虫板均可诱集到一定量槟榔园害虫, 其中以黄板诱虫效果最佳, 总诱虫量及对蓟马、黑刺粉虱和叶蝉等3种监测害虫的诱集效果均优于蓝板和黄蓝混合板。4种添加物对黄板增效试验结果表明, 添加诱虫烯可显著提高诱虫总量, 添加诱虫烯或蜂蜜水可显著提高对蓟马的诱集量, 添加蜂蜜水可提高叶蝉诱虫量, 各添加物均对黄板诱集黑刺粉虱无增效作用。对蓝板的增效作用结果表明, 供试的4种添加物均可增加蓝板诱虫总量, 其中以诱虫烯和蜂蜜水的效果较好, 且两者之间无显著差异。各添加物中, 仅糖醋液对蓝板诱集叶蝉起到增效作用, 其余添加物对蓝板诱集蓟马、黑刺粉虱及叶蝉无增效作用。     

Spread of Paraleyrodes minei Iaccarino (nesting whitefly) in Italian citrus groves

Outbreaks of Paraleyrodes minei Iaccarino have been noted on citrus in a wide area along the whole eastern coast of Sicily (South Italy), in the districts of Catania, Messina and Siracusa. Until this year, the whitefly was only reported in Italy from a few samples collected on a limited number of ornamental sour orange trees in a town park in Portici, in the district of Naples. Findings in 2014 of the insect in Sicily were made not only on ornamental citrus trees in urban areas, but more importantly in orange, lemon and mandarin commercial orchards. This severe and extremely rapid spread of P. minei in Sicily (where more than half of Italian citrus are produced) represents a potential threat for the local citrus industry and requires careful monitoring to define both the actual pest status of the whitefly as well as the occurrence and role of eventual natural enemies. Brief notes on morphology, bio‐ecology and present geographical distribution of P. minei are given in this paper, together with details on the occurrences in Sicily and short considerations on the pest importance and control possibilities for this insect.     

Overwintering of the Japanese bayberry whitefly,parabemisia myricae,in Israel

The Japanese bayberry whitefly,Parabemisia myricae (Kuwana), was discovered in Israel on citrus and avocado trees in 1978. In order to clarify its mode of overwintering, observations and counts were carried out during the winters of 1979/80, 1982/83 and 1983/84, with the following findings. Larvae and adults were detected on citrus and avocado trees throughout the winter; only females were found. The oviposition rate ofP. myricae in winter was low, and rose steeply in spring. The density of larvae on the lower side of leaves was higher than on the upper side. Substantial numbers of larvae survived the winter on avocado trees. Emergence of adults became intensified at the end of February, reached a peak in early March, and ceased at the end of March or beginning of April.     

Population dynamics and spread of Unaspis yanonensis in Calabria, Italy

The occurrence of Unaspis yanonensis (Kuwana) (Hemiptera: Diaspididae) in Calabria (southern Italy) poses a serious threat to citrus cultivation. A regional survey was performed to record information about its distribution in local citrus orchards. Field population dynamics were also studied. The arrowhead scale, U. yanonensis, was recorded in the two main citrus cultivation areas of Calabria. In the investigated environments U. yanonensis completed two generations per year; a typical bi-modal oviposition was recorded. The arrowhead scale overwintered as second-instar males and pre-ovipositing females.