Inventory of Ornamental Plant Mealybug(Hemiptera Pseudococcidae) in Tunisia:Species, Host Plants and Distribution (original) (raw)
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EPPO Bulletin, 2019
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.
Journal of the Entomological Research Society
A field survey for natural enemies of mealybugs (Hemiptera, Pseudococcidae) in Kermanshah province, Iran was conducted during years 2009-2010. Five primary, two primary/secondary, one secondary parasitoid species, and twelve predator species were collected on five species of Pseudococcidae. The coccinellids Diomus rubidus Motsch 1837, Nephus biflammulatus (Motschulsky 1837) and Nephus ulbrichi Fürsch 1977 are new records for Iran. In addition, two encyrtid species, including Homalotylus turkmenicus Myartseva and Homalotylus eytelweinii (Ratzeburg) were reared on coccinellid larvae that have been associated with mealybugs colonies. Available ecological and biological information as well as geographical distribution for each species are also included.
Ornamental species associated with pink hibiscus mealybug (Hemiptera: Pseudococcidae) in Nayarit
2011
The study was conducted in 2009 in order to understand the diversity of ornamental species susceptible to the hibiscus mealybug attack, Maconellicoccus hirsutus (Green) and, to determine the incidence and severity of this insect infestation. The weekly samplings in 28 plant species were quantified mealybug individuals, present in 9 101 sampling sites in seven municipalities, in marginal, urban, agricultural and nursery areas. This pest was detected in 2 435 sites (26.7%), with infestation of 25.7, 0.9 and 0.1% for low, medium and high levels, respectively. Plant species identified with the highest incidence of the pest, were Hibiscus rosa-sinensis L., (37.4%), H. tiliaceaus Arruda (29%) and H. mutabilis, (14.4%); for H. rosa- sinensis, municipalities that were identified with the highest pest-host association were Acaponeta (59.3%), Santiago Ixcuintla (44.2%) and Rosamorada (37.5%). Montanoa grandiflora Alaman ex DC and Solandra sp., were identified as new hosts of hibiscus mealybug...
Asian Research Journal of Agriculture
Mealybugs are considered as the most important insect pests of fruits, vegetables and cotton in Swaziland. However, lack of sound identification and information on the mealybug species attacking these crops in the country represents a major barrier to establish satisfactory pest management strategies. In this study, a DNA barcoding approach was used to identify mealybug species attacking wild hosts, ornamentals and cultivated crops in the country. Molecular identification using fragment of mitochondrial cytochrome oxidase sub-unit I revealed the presence of six mealybug species belonging to four genera. A significant (0.00-0.68%) within species similarity and between species sequence divergence (6.90-16.80%) was observed. Of the species identified Phenacoccus madeirensis and Phenacoccus solenopsis, were the dominant and were highly polyphagus. Phenacoccus solenopsis, was recorded from 12 host plants belonging to six families in three regions, whereas, P. madeirensis was recovered from five wild host plants growing in Middleveld
The pink hibiscus mealybug Maconellicoccus hirsutus (Green) (Hemiptera: Pseudococcidae) is a serious economic pest in tropical and subtropical regions and cause damage to many agricultural, forestry and greenhouse crops. In order to identify the natural enemies of this pest, bi-weekly samplings were done in infested areas of Ahvaz, located at southwest Iran during 2011-2012. Samples were also taken from Chinese hibiscus shrubs, Hibiscus rosa-sinenensis L. at two urban areas in Ahvaz to determine the pest population fluctuations. Other infested plants were also sampled for exploring natural enemies associated with M. hirsutus. The identified natural enemies in this study are as follows: Nephus arcuatus Kapur, Hyperaspis polita Weise, Hyperaspis vinciquerrae Capra, Exochomus nigripennis Erichson, Scymnus (Pullus) syriacus Marseul (Col., Coccinellidae) – Chrysoperla carnea (Stephens) (Neu., Chrysopidae) – Anagyrus sp. (Hym., Encyrtidae). Also one parasitoid of coccinellid larvae and th...
Journal of Plant Protection Research, 2015
Recently, the mealybug Phenacoccus solenopsis Tinsley (Hemiptera: Pseudococcidae) was recorded as a new pest on tomato plants (Lycopersicon esculentum Mill) growing in Egypt. The mealybugs specimens were collected from tomato plants in the Qalyoubia governorate during summer season of 2014. The mealybug was identified as P. solenopsis based on the morphological characters and taxonomic key of this species. This study represents the first record of P. solenopsis as a new insect pest attacking tomato plants in Egypt