| evaluation of diets for the development and reproduction of franklinothrips orizabensis (thysanoptera: aeolothripidae). | the suitability of ten diets for the development and reproduction of franklinothrips orizabensis johansen, the key natural enemy of scirtothrips perseae nakahara, a pest of california grown avocados, was determined in the laboratory. the experimental diets evaluated were: (i) irradiated ephestia kuehniella zeller eggs; (ii) irradiated e. kuehniella eggs and avocado pollen; (iii) tetranychus pacificus mcgregor eggs; (iv) t. pacificus eggs and avocado pollen; (v) irradiated e. kuehniella eggs and ... | 2001 | 11587623 |
| relationship between nutritional composition of plant species and infestation levels of thrips. | levels of soluble protein and carbohydrate (raffinose, sucrose, glucose, and fructose) in leaves from a selection of plant species were measured to determine if a relationship existed between these nutrients and infestation by frankliniella occidentalis and heliothrips haemorrhoidalis. most species of host plant examined contained a higher proportion of protein than carbohydrates, and overall, leaves from species of plants that supported populations of thrips had greater levels of protein than l ... | 2002 | 12564789 |
| influence of a short exposure to teflubenzuron residues on the predation of thrips by iphiseius degenerans (acari: phytoseiidae) and orius laevigatus (hemiptera: anthocoridae). | a short duration (24h) leaf-disc bioassay was used to determine the effects of teflubenzuron residues on the predation levels of two predators, iphiseius degenerans (berlese) and orius laevigatus (fieber), foraging on nymphs of two species of thrips, frankliniella occidentalis (pergande) and heliothrips haemorrhoidalis (bouche), on a range of different species of plant. teflubenzuron did cause thrips mortality during the 24-h bioassay; it was more active against h haemorrhoidalis than f occident ... | 2003 | 14620054 |
| thysanoptera (thrips) within citrus orchards in florida: species distribution, relative and seasonal abundance within trees, and species on vines and ground cover plants. | seven citrus orchards on reduced to no pesticide spray programs were sampled for thysanoptera in central and south central florida. inner and outer canopy leaves, fruits, twigs, trunk scrapings, vines and ground cover plants were sampled monthly between january 1995 and january 1996. thirty-six species of thrips were identified from 2,979 specimens collected from within citrus tree canopies and 18,266 specimens from vines and ground cover plants within the seven citrus orchards. the thrips speci ... | 2006 | 20233100 |
| leaf chemistry and foliage avoidance by the thrips frankliniella occidentalis and heliothrips haemorrhoidalis in glasshouse collections. | observational studies on foliage avoidance by the polyphagous thrips species frankliniella occidentalis (pergande) and heliothrips haemorrhoidalis (bouché) (thysanoptera: thripidae) identified six non-host species (allagopappus dichotomus (asteraceae), gardenia posoquerioides (rubiaceae), plectranthus aff. barbatus, plectranthus strigosus, plectranthus zuluensis (lamiaceae), and sclerochiton harveyanus (acanthaceae) among plants growing within a major glasshouse botanical collection. the effects ... | 2011 | 21331569 |
| protoilludane, illudane, illudalane, and norilludane sesquiterpenoids from granulobasidium vellereum. | two new and seven known sesquiterpene compounds were isolated from an agar plate culture of granulobasidium vellereum, isolated from a log of ulmus sp. the two new structures were elucidated with spectroscopic methods as an illudalane derivative, granulolactone (1), and a 15-norilludane, granulodione (9). the acaricidal and insecticidal activities of the isolated compounds were examined in vitro against two major horticultural pests, the two-spotted spider mite tetranychus urticae and the glassh ... | 2016 | 27227966 |
| heliothrips haemorrhoidalis and its relatives, with one new species and one new genus (thysanoptera: thripidae). | heliothrips similis sp.n. is described as a close relative of the greenhouse thrips, heliothrips haemorrhoidalis. this is the third species recognized here in the neotropical genus heliothrips. a pest species described from south africa as heliothrips sylvanus is transferred to a new genus, neoheliothrips gen.n., as neoheliothrips sylvanus (faure) comb.n. | 2015 | 26624155 |
| the anatomy of the thrips heliothrips haemorrhoidalis (thysanoptera, thripidae) and its specific features caused by miniaturization. | a new set of data on the internal and external structure of the adult and larva of the thrips heliothrips haemorrhoidalis (bouché, 1833) is presented. the structure of the internal systems of this thrips was revealed using modern methods of 3d computer modelling. the changes in shape and relative size are discussed as an outcome of miniaturization in comparison to the supposed ancestor of this species. the layout of the internal systems of thrips is compared to those of other insects similar in ... | 2016 | 27623430 |
| polyploidy versus endosymbionts in obligately thelytokous thrips. | thelytoky, the parthenogenetic development of females, has independently evolved in several insect orders yet the study of its mechanisms has so far mostly focussed on haplodiploid hymenoptera, while alternative mechanisms of thelytoky such as polyploidy are far less understood. in haplodiploid insects, thelytoky can be encoded in their genomes, or induced by maternally inherited bacteria such as wolbachia or cardinium. microbially facilitated thelytoky usually results in complete homozygosity d ... | 2015 | 25880387 |