An annotated list of 83 scale insect species (Hemiptera: Sterorrhyncha: Coccoidea) recorded from Saint Lucia is presented, based on data gathered from UK quarantine interceptions, samples collected in an urban coastal habitat in the North West of the Island in 2013, and published records. Thirty-three species (40%) are recorded for the first time for the country, including Dysmicoccus joannesia...

Foreign exploration for natural enemies of pink hibiscus mealybug, Maconellicoccus hirsutus , was conducted in Australia from 2000 to 2002. In Queensland, the predaceous beetle Cryptolaemus montrouzieri , the predaceous drosophilid fly, Cacoxenus perspicax and the encrytid parasitoid Gyranusoidea indica were recovered. In Western Australia and the Northern Territory a predatory noctuid , Mataeo...

Many insects possess adhesive foot pads, which enable them to scale smooth vertical surfaces. The function of these organs may be highly affected by environmental conditions. Ladybird beetles (Coccinellidae) possess dense tarsal soles of tenent setae, supplemented with an adhesive fluid. We studied the attachment ability of the seven-spotted ladybird beetle (Coccinella septempunctata) at differ...

Hitherto six species of scuttle fly of the cosmopolitan genus Phalacrotophora Enderlein were known from Europe, of which only two were recorded from Britain and the Netherlands (Disney, 1991). The larvae of these two species, P. berolinensis Schmitz and P. fasciata (Fallén), are parasitoids of the pupae of Coccinellidae (ladybird beetles) (Disney, Majerus & Walpole, 1994). The larval habits oft...

1. Pea aphids (Acyrthosiphon pisum Harris; Hemiptera: Aphididae) exhibit transgenerational wing polyphenism, in which unwinged females produce genetically identical winged offspring in response to environmental cues such as overcrowding and predation risk that indicate poor habitat quality. 2. Laboratory experiments were carried out to explore the intensity of the wing polyphenic response of pe...

A nested set of bacterial endosymbionts within mealybug cells collectively provides amino acids to their host, but their genomes show that some pathways are distributed between both endosymbionts, while other essential proteins are missing altogether. The possibility that additional functions are shared between partners warrants comparisons with organelles.

Investigations on susceptibility of insecticides in cotton mealybug (Phenacoccus solenopsis Tinsley) was carried out at Main Cotton Research Station, Navsari Agricultural University, Surat during October 2020 to January 2021 through the IRAC leaf dip bio-assay technique. Mealybug population from farmer’s field Bharuch district were collected and reared NAU, under cage cover. Leaf bio-assays for...

Abstract Mealybug wilt of pineapple (MWP) is the most important disease worldwide. During months September and November 2020, production fields cultivar Hawaiiana hybrid MD-2 in Satipo Chanchamayo provinces Peru, showed typical symptoms MWP. Based on symptoms, incidence level ranged between 70 90%. Symptomatic asymptomatic foliar samples were collected tested by RT-PCR using primers specific fo...

Abstract The scale mealybug, Diaspis echinocacti (Bouché, 1833) (Hemiptera: Diaspididae), is one of the main pests cactus pear in Brazil. objective was to study biological aspects D. at constant temperatures 25, 28, 30, 33 and 35 °C with relative humidity 60 ± 10% photoperiod 12 hours laboratory on cultivar, “Orelha de Elefante Mexicana”, Opuntia stricta [Haw.] Haw. development period (22 days)...