Publications

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phoretic dispersal of armored scale crawlers (hemiptera: diaspididae).dispersal and colonization of new areas by armored scale insects (hemiptera: diaspididae) is achieved by mobile first-instar nymphs, called crawlers. few studies have considered the actual mechanisms by which crawlers disperse, and although crawlers are capable of actively wandering over short distances (generally < 1 m), their dispersal over longer distances has been thought to be wind-mediated. here, we present evidence of a potentially more important means of dispersal over longer distances ( ...201020857725
local phytochemical response of musa acuminata × balbisiana colla cv. 'bluggoe' (abb) to colonization by sternorrhyncha.the interaction of two sternorrhyncha species, the banana aphid (pentalonia nigronervosa coquerel (hemiptera: aphididae, aphidinae)), vector of the banana bunchy top virus (bbtv), and the latania scale (hemiberlesia lataniae signoret (hemiptera: diaspididae, diaspidinae)) with musa acuminata × balbisiana colla (abb group) 'bluggoe' (musaceae) was investigated by a combination of conventional and spatially resolved analytical techniques, (1)h nmr, uhplc-ms, and matrix-free uv-laser desorption/ion ...201727839785
rapid molecular identification of armored scale insects (hemiptera: diaspididae) on mexican 'hass' avocado.'hass' avocado, persea americana mill., fruit imported into california from mexico are infested with high levels of armored scale insects (hemiptera: diaspididae), constituting several species. the paucity and delicate nature of morphological characters traditionally used to diagnose armored scales often require careful preparation of slide-mounted specimens and expert knowledge of the group, for their accurate identification. here, we present a simple, quick, and accurate means to identify armo ...200919886461
dna diagnostics of three armored scale species on kiwifruit in new zealand.three species of armored scale (hemiptera: diaspididae) are found on kiwifruit (actinidia spp.) in new zealand orchards: latania scale, hemiberlesia lataniae (signoret); greedy scale, hemiberlesia rapax (comstock); and oleander scale, aspidiotus nerii (bouché). each of them is a quarantine pest in some of the markets to which new zealand kiwifruit are exported. adult females of the three species can be distinguished morphologically; however, the task is laborious when large numbers must be ident ...200819133478
survey of scale insects of ornamental plants in alexandria governorate, egypt.this investigation covers a survey of the scale insects associating with some ornamental plants at three chosen public gardens as well as at the experimental farm of the agricultural research station in alexandria governorate, egypt. a total of nineteen scale insect species belonging to sixteen genera related to four families of the super-family coccoidea were found infesting eighteen ornamental plants during the period from april, 1998 up to march, 1999. these species are: family: asterolecanii ...200112425080
enumerative and binomial sampling plans for armored scale (homoptera: diaspididae) on kiwifruit leaves.the spatial dispersion of armored scale insects; greedy scale, hemiberlesia rapax (comstock); and latania scale, hemiberlesia lataniae (signoret), was investigated on kiwifruit, actinidia deliciosa (a. chevalier) c. f. liang et a. r. ferguson, leaves in new zealand. a universal description for dispersion was determined using taylor's power law, which encompassed a wide range of different orchards, blocks, block sizes, sampling times, scale control practices, regions and seasons. scale density si ...200011142309
transcriptome analysis of kiwifruit (actinidia chinensis) bark in response to armoured scale insect (hemiberlesia lataniae) feeding.the kiwifruit cultivar actinidia chinensis 'hort16a' is resistant to the polyphagous armoured scale insect pest hemiberlesia lataniae (hemiptera: diaspididae). a cdna microarray consisting of 17,512 unigenes selected from over 132,000 expressed sequence tags (ests) was used to measure the transcriptomic profile of the a. chinensis 'hort16a' canes in response to a controlled infestation of h. lataniae. after 2 days, 272 transcripts were differentially expressed. after 7 days, 5,284 (30%) transcri ...201526571404
microarray analysis of kiwifruit (actinidia chinensis) bark following challenge by the sucking insect hemiberlesia lataniae (hemiptera: diaspididae).both commercial and experimental genotypes of kiwifruit (actinidia spp.) exhibit large differences in response to insect pests. an understanding of the vine's physiological response to insect feeding and its genetic basis will be important in assisting the development of varieties with acceptable levels of pest resistance. this experiment describes transcriptome changes observed in the bark of kiwifruit 2 and 7 days after the commencement of feeding by the armored scale insect pest, hemiberlesia ...201626981426
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