Natural enemies of the invasive mealybug Phenacoccus peruvianus (Hemiptera: Pseudococcidae): first report of some parasitoids in Italy

The bougainvillea mealybug, Phenacoccus peruvianus Granara de Willink (Hemiptera: Pseudococcidae), was first detected in Sicily in 2002 at high population levels on Bougainvillea glabra Choisy (Nyctaginaceae). In 2016, during a recent monitoring activity, natural enemies of this pest were detected for the first time. This report represents the first identification of P. peruvianus parasitoids in Italy and some information on the recovered entomophagous species is provided.     

Phenacoccus madeirensis (Hemiptera: Pseudococcidae): a new species of mealybug in Tunisia

In August 2013, Phenacoccus madeirensis Green, 1923 (Hemiptera: Pseudococcidae) was identified for the first time in Tunisia, in the region of Akouda (Sousse, coastal area of Tunisia) on Cestrum nocturnum (Solanaceae) during a survey. The infestation was observed on leaves, shoots and also on the collar. This is the first record of P. madeirensis in Tunisia and the first record of this pest in North Africa. Two other mealybugs Peliococcus cycliger and Planococcus citri were also recorded during this survey. They have previously been reported in Tunisia.     

New record of invasive mealybug Phenacoccus solenopsis Tinsley (Hemiptera: Pseudococcidae) in Turkey

This short note reports the first record of the invasive mealybug Phenacoccus solenopsis Tinsley (Hemiptera: Pseudococcidae) in Turkey. It was found on ornamental plants in the city center of Adana (Mediterranean region), but could be a threat to cotton production in the country.     

应用TaqMan MGB探针快速检测新菠萝灰粉蚧和菠萝灰粉蚧

新菠萝灰粉蚧(Dysmicoccus neobrevipes(Beardsley))是我国进境植物检疫性有害生物,新菠萝灰粉蚧和菠萝灰粉蚧(D.brevipes)经常从进口菲律宾和东南亚水果中截获,用形态学方法对二者进行鉴定较难,且耗时较长。为了对这两种粉蚧进行快速准确鉴定,本研究利用mtDNA COI基因设计了两组特异性引物和MGB探针,应用TaqMan实时荧光PCR方法实现了对新菠萝灰粉蚧和菠萝灰粉蚧进行快速准确鉴定的目的。该方法耗时短,重复性好,适合在口岸检疫中推广应用。     

First record of the mealybug Phenacoccus madeirensis Green, 1923 (Hemiptera: Coccomorpha: Pseudococcidae) in Algeria

The mealybug Phenacoccus madeirensis Green (Hemiptera: Coccomorpha: Pseudococcidae) is recorded from Algeria for the first time. This pest was first detected in the summer of 2018 in private gardens in Salamandre, on the coastal side of Mostaganem City in north‐western Algeria, feeding on three ornamental plants: Hibiscus rosa‐sinensis L., Hibiscus syriacus L. (Malvaceae) and Cestrum nocturnum L. (Solanaceae). In October 2018, it was also found on Aloysia citriodora Palàu (Verbenaceae) growing near Hibiscus. The first samples collected had been attacked by hymenopteran parasitoids. Surveys of ornamental nurseries and greenhouses growing vegetables in the area indicate that, at present, P. madeirensis seems to be restricted to ornamental plants. More surveys over larger areas are needed to determine its distribution and the likely origin of its introduction to Algeria.     

First record of the Madeira mealybug,Phenacoccus madeirensis Green (Hemiptera: Pseudococcidae), in Jordan

The Madeira mealybug, Phenacoccus madeirensis (Hemiptera: Pseudococcidae), is recorded from Jordan for the first time. Specimens were collected from heavily infested ornamental geranium plants, Pelargonium sp. (Geraniaceae), Chrysanthemum sp. (Asteroideae), Hibiscus rosa‐sinensis L. (Malvaceae), Kalanchoe blossfeldiana Poellnitz (Crassulaceae) and basil, Ocimum basilicum L. (Lamiaceae). In addition, this mealybug was taken from infested leaves of cherry tomato, Solanum lycopersicum L., and sweet pepper, Capsicum annuum L. (Solanaceae). Kalanchoe blossfeldiana is recorded as a new host for P. madeirensis. Slide mounts were prepared, and voucher specimens were preserved at the University of Jordan Insect Museum. An urgent survey should be initiated to determine the current distribution of the pest in Jordan. Inspection of ornamental nurseries should be given priority and plant protection officials should pay particular attention to this serious pest.     

Molecular and morphological identification of the mealybug,Phenacoccus solani Ferris (Hemiptera: Pseudococcidae): first report in Egypt

During the summer and autumn of 2016, pumpkins, Cucurbita spp. (Cucurbitaceae), were observed to be infested by mealybug species. Populations were collected on various pumpkin fruits from Rosetta, a port city at the North‐Western Nile River delta, Lower Egypt. This study aimed to identify the principle mealybug species infesting the major pumpkin‐producing regions in Egypt, by molecular and morphological characterization. DNA from 15 specimens and morphological data from 22 specimens were used to confirm the identity of the mealybug species. The species present were identified as Phenacoccus solani Ferris, Phenacoccus solenopsis Tinsley, and Planococcus citri (Risso). This is the first record of Phenacoccus solani Ferris (Hemiptera: Pseudococcidae) in Egypt.     

南瓜饲养榕树粉蚧的发育历期与生物学特征初报

榕树粉蚧是一种重要的入侵害虫,对果蔬和园林植物存在巨大的潜在威胁.为满足开展检疫处理、防控、生物学和生理学等研究的需要,本研究以南瓜为饲养材料,在室温条件下(26±1℃,RH 65％±5％)观察榕树粉蚧的生物学特性与发育历期.结果 表明,榕树粉蚧具有典型的雌雄二型现象.雄虫主要经历卵、1～2龄若虫、预蛹、蛹、雄成虫阶段...     

广东和海南扶桑绵粉蚧的天敌调查

自2009年7月至2010年12月,我们对广东和海南的扶桑绵粉蚧Phenacoccus solenopsis Tinsley的天敌进行调查,共发现8种天敌。其中,捕食性天敌有4种,分别是孟氏隐唇瓢虫Cryptolaemus montrouzieri Mulsant、双带盘瓢虫Lemnia biplagiata(Swartz)、六斑月瓢虫Menochilus sexmaculatus(Fabricius)和圆斑弯叶毛瓢虫Nephus quadrimacu-latus(Kamiya);寄生性天敌有4种,分别是松粉蚧抑虱跳小蜂Acerophagus coccois Smith、班氏跳小蜂Aenasius bam-bawalei Hayat、长崎原长缘跳小蜂Prochiloneurus nagasakiensis(Ishii)和粉蚧广腹细蜂Allotropa sp.。文内简要描述了6种天敌的主要鉴别特征,并提供了一些形态特征图。     

First record of cotton mealybug,Phenacoccus solenopsis Tinsley 1898 (Hemiptera: Pseudococcidae), from Saudi Arabia

The cotton mealybug, Phenacoccus solenopsis Tinsley 1898 (Hemiptera: Pseudococcidae), is recorded from Saudi Arabia for the first time. This species was collected from heavily infested Hibiscus rosa-sinensis L. (Malvaceae) from the city of At-Taif in the south-western part of the Arabian Peninsula. In addition, the mealybug Ferrisia virgata (Cockerell, 1893), previously recorded in Saudi Arabia, was found on Plumeria rubra L. (Apocynaceae) and on Dodonaea viscosa Jacq. (Sapindaceae). Slide mounts were prepared and voucher specimens were preserved at the University of Jordan Insects Museum. Further surveys should be initiated to investigate the distribution and hosts of P. solenopsis in Saudi Arabia.     

New records of mealybugs (Hemiptera: Pseudococcidae) from Spain

Five mealybug (Hemiptera: Pseudococcidae) species were identified as new records for Spain: Phenacoccus madeirensis (Green), Phenacoccus solani Ferris, Dysmicoccus boninsis (Kuwana), Hypogeococcus pungens Granara de Willink and Ferrisia malvastra (McDaniel).     

The pink hibiscus mealybug,Maconellicoccus hirsutus (Green) (Hemiptera: Coccomorpha: Pseudococcidae), a new threat to Israel's agriculture and horticulture

The invasive mealybug Maconellicoccus hirsutus (Green) (Hemiptera: Coccomorpha: Pseudococcidae) is reported in Israel for the first time. This damaging mealybug was detected in two locations in Northern Israel on various ornamental plants. Its principal parasitoids, Anagyrus kamali Moursi and Gyranusoidea indica Shafee (Hymenoptera: Encyrtidae), were both recovered from the collected samples. Maconellicoccus hirsutus is highly polyphagous but particularly thrives on members of the plant families Fabaceae, Malvaceae and Moraceae.     

枣树重要害虫——枣星粉蚧和枣树皑粉蚧的识别

有文献报道,枣葵粉蚧"Trionymus sp."是河北省枣树上的一种重要害虫,但我国蚧虫的重要文献上并没有记录这一种。国内有关枣星粉蚧Heliococcus destructor Borchsenius(=Heliococcus zizyphi Borchsenius)的生物学,实来自枣葵粉蚧。枣葵粉蚧其实是一个新的枣树害虫,2016年定名为枣树皑粉蚧Crisicoccus ziziphus Zhang et Wu。本文记述了这两种粉蚧的研究历史、形态区别特征,并提供了生态图片,供生产上鉴别参考。     

Investigation of mealybug (hemiptera: Coccoidea: Pseudococcidae) species from Turkey by RAPD

Molecular markers are commonly used for determining the relationship between insect species. In this study, we investigated the relationship of six mealybug species,Planococcus citri (Risso),Planococcus ficus (Signoret),Planococcus vovae (Nasonov),Pseudococcus longispinus (Targioni Tozzetti),Pseudococcus viburni (Signoret) andPhenacoccus aceris (Signoret), sampled from Turkey, using randomly amplified polymorphic DNA-polymerase chain reaction (RAPD-PCR). Of the 50 RAPD primers tested, 18 identified a total of 256 fragments of which all were polymorphic. Sufficient discrimination betweenP. citri andP. ficus was provided by several RAPD primers. The genetic distance values calculated for each pair-wise comparison ranged from 0.156 to 0.504. Cluster analyses of RAPD data clearly separated the species into two groups. http://www.phytoparasitica.org posting May 4, 2007.     

Note: The solanum mealybug,Phenacoccus solani ferris (Hemiptera: Coccoidea: Pseudococcidae), extends its distribution range in the mediterranean basin

The Solanum mealybug,Phenacoccus solani Ferris (Hemiptera: Coccoidea: Pseudococcidae), is newly recorded from Israel, where it was found on the Coastal Plain and in the Arava Valley, on plants belonging to the families Amaryllidaceae, Compositae and Solanaceae. http://www.phytoparasitica.org posting Nov. 25, 2004.     

基于分子标记COI、28S和18S对新菠萝灰粉蚧与菠萝灰粉蚧的识别鉴定

新菠萝灰粉蚧(Dysmicoccus neobrevipes Beardsley)是我国进境植物检疫性有害生物,与近似种菠萝灰粉蚧(Dysmicoccus brevipes(Cockerell))从形态上很难区分,给口岸快速准确鉴定带来了困难。本研究尝试采用快速、易于操作的DNA条形码技术对两种粉蚧识别鉴定。实验选择两种粉蚧的不同地理种群共65个样本,选用3个分子标记(COI、28S和18S)进行引物筛选、基因扩增、序列分析。结果表明:引物(18S_2880_F/18S_B_R;28S_S3660_F/28S_A335_R;Pco_F/C1-12342_R)能够成功扩增所有测试样品;3个分子标记都存在条形码间隔,COI最大,28S次之,18S最小;结合Gen Bank数据库中的同源序列进行系统发育分析,28S的NJ树图与COI相似,均以高支持率(97%和100%)将所有样本分成2个独立分支,分析结果与形态鉴定结果一致。与28S和COI相比,18S基因序列矩阵构建的聚类树含低支持率分支。本研究扩增的COI及28S基因区段均可作为快速准确鉴定新菠萝灰粉蚧与菠萝灰粉蚧的有效分子标记。     

First record of the papaya mealybug,Paracoccus marginatus Williams & Granara de Willink (Hemiptera: Coccomorpha: Pseudococcidae), in the Western Palaearctic

The papaya mealybug, Paracoccus marginatus Williams & Granara de Willink (Hemiptera: Coccomorpha: Pseudococcidae) has been found in Israel for the first time. This is also the first record of this invasive species in the Western Palaearctic region. The mealybug was detected at two locations in Northern Israel and was not accompanied by its principal natural enemies. Paracoccus marginatus is highly polyphagous and may develop large populations in Israel on annona, hibiscus, mulberry, papaya and the invasive weed Parthenium hysterophorus.     

Effectiveness of imidacloprid,spirotetramat, and flupyradifurone to prevent spread of GLRaV-3 by grape mealybug,Pseudococcus maritimus (Hemiptera: Pseudococcidae)

Journal of Plant Diseases and Protection - Pseudococcus maritimus status as an economic pest increased substantially after it was identified as a key vector of most grape vine leafroll-associated...