| herbivory-induced maternal effects on growth and defense traits in the clonal species alternanthera philoxeroides. | plants have evolved a variety of defense traits against foliar herbivory, including the production of primary and secondary metabolites, the allocation of chemical compounds, and morphological plasticity. using two vegetative generations of the invasive clonal species alternanthera philoxeroides, we investigated the effects of maternal and offspring herbivory by planococcus minor on the integrative defense strategy of plants. herbivory severely inhibited leaf, stolon and root growth, as well as ... | 2017 | 28662425 |
| developing detection and monitoring strategies for planococcus minor (hemiptera: pseudococcidae). | a pheromone-based system to locate and monitor planococcus minor (maskell), a pest of over 250 plants including citrus, grape, and cacao, was tested. the difficulty in distinguishing p. minor from the citrus mealybug, p. citri, makes finding and evaluating the impact of the pest challenging. studies conducted in puerto rico determined that synthetic p. minor pheromone lures preaged 120 d in the field caught similar number of males as lures not aged (fresh). molecular analysis of trapped mealybug ... | 2012 | 23356070 |
| fungus-insect gall of phlebopus portentosus. | phlebopus portentosus is a popular edible wild mushroom found in the tropical yunnan, china, and northern thailand. in its natural habitats, a gall often has been found on some plant roots, around which fungal fruiting bodies are produced. the galls are different from common insect galls in that their cavity walls are not made from plant tissue but rather from the hyphae of p. portentosus. therefore we have termed this phenomenon "fungus-insect gall". thus far six root mealy bug species in the f ... | 2015 | 25344264 |
| an annotated checklist of scale insects (hemiptera: coccoidea) of saint lucia, lesser antilles . | 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 joannesiae (costa lima), a south american mealybug, and poliaspoides formosana (takahashi), an asian armoured sc ... | 2014 | 25112239 |
| polymerase chain reaction-restriction fragment length polymorphism method to distinguish three mealybug groups within the planococcus citri-p. minor species complex (hemiptera: coccoidea: pseudococcidae). | the mealybug species planococcus citri (risso) and planococcus minor (maskell) (hemiptera: coccoidea: pseudococcidae) have special significance to u.s. quarantine and u.s. agriculture. commonly intercepted at u.s. ports-of-entry, they are difficult to identify based on morphological characters. this study presents a molecular method for distinguishing p. citri, p. minor, and a genetically distinct group that is morphologically identical to p. citri, from hawaii. this method uses polymerase chain ... | 2009 | 19253611 |
| [occurrence of planococcus minor maskell (hemiptera: pseudococcidae) in cotton fields of northeast region of brazil]. | the mealybug planococcus minor maskell is a significant pest of more than 250 cultivated plants belonging to at least 80 families. among the host plants several malvaceae species are attacked, including the genera gossypium. in 2005 and 2006 the mealybug p. minor was observed infesting cotton fields in the arid area of northeast region of brazil. the occurrence was registered in high densities and in several farms resulting in mortality of plants in some cases. this species is not cited as a cot ... | 2007 | 17934633 |
| identification and synthesis of the sex pheromone of the passionvine mealybug, planococcus minor (maskell). | the sex pheromone of the mealybug, planococcus minor was isolated by fractionation of crude pheromone extract obtained by aeration of virgin females. the pheromone was identified as the irregular terpenoid, 2-isopropyl-5-methyl-2,4-hexadienyl acetate, by mass spectrometry, microchemical tests, and (1)h nmr spectroscopy. the stereochemistry of the pheromone was assigned as (e) by comparison with synthetic standards of known geometry. the compound was highly attractive to males in laboratory bioas ... | 2007 | 17885792 |
| effects of irradiation on planococcus minor (hemiptera: pseudococcidae). | irradiation has been recognized and endorsed as a potential phytosanitary measure that could be an alternative to current quarantine treatments. dosages of 50, 100, 150, 200, and 250 gy were used to irradiate three different life stages (eggs, immatures, and adults) of planococcus minor (maskell) (hemiptera: pseudococcidae), focusing on females due to its parthenogenesis ability, with an aim to find the most tolerant stage and the most optimal dose to control p. minor. cobalt 60 was the source o ... | 2009 | 19886441 |