| first records of two mealybug species in brazil and new potential pests of papaya and coffee. | five mealybug (hemiptera: pseudococcidae) plant pest species: dysmicoccus grassii (leonardi), ferrisia malvastra (mcdaniel), ferrisia virgata (cockerell), phenacoccus tucumanus granara de willink, and pseudococcus elisae borchsenius are recorded for the first time in the state of espírito santo, brazil. these are the first records of d. grassii in brazil, from papaya (carica papaya, caricaceae), and from coffee (coffea canephora, rubiaceae). ferrisia malvastra is also newly recorded in brazil, w ... | 2006 | 19537975 |
| formation of stylet sheaths in āere (in air) from eight species of phytophagous hemipterans from six families (suborders: auchenorrhyncha and sternorrhyncha). | stylet sheath formation is a common feature among phytophagous hemipterans. these sheaths are considered essential to promote a successful feeding event. stylet sheath compositions are largely unknown and their mode of solidification remains to be elucidated. this report demonstrates the formation and solidification of in āere (in air) produced stylet sheaths by six hemipteran families: diaphorina citri (psyllidae, asian citrus psyllid), aphis nerii (aphididae, oleander/milkweed aphid), toxopter ... | 2013 | 23638086 |
| performance of the striped mealybug ferrisia virgata cockerell (hemiptera: pseudococcidae) under variable conditions of temperature and mating. | mealybugs have strong associations with their host plants due to their limitations for dispersal. thus, environmental conditions and host quality may impact the biological traits of mealybugs. to the best of our knowledge, we are the first to report on the biology of a brazilian population of the striped mealybug ferrisia virgata cockerell (hemiptera: pseudococcidae), which has recently been reported to infest cotton in brazil. we evaluated the development and reproductive performance of f. virg ... | 2014 | 27193398 |
| the phloem-sap feeding mealybug (ferrisia virgata) carries 'candidatus liberibacter asiaticus' populations that do not cause disease in host plants. | 'candidatus liberibacter asiaticus' (las) is the primary causal agent of huanglongbing (hlb), the most devastating disease of citrus worldwide. there are three known insect vectors of the hlb-associated bacteria, and all are members of the hemiptera: diaphorina citri (psyllidae), trioza erytreae (triozidae), and cacopsylla (psylla) citrisuga (psyllidae). in this study, we found that another hemipteran, the striped mealybug ferrisia virgata (cockerell) (hemiptera: pseudococcidae), was able to acq ... | 2014 | 24465578 |
| identification of mealybug pest species (hemiptera: pseudococcidae) in egypt and france, using a dna barcoding approach. | pseudococcidae (mealybugs) is a large taxonomic group, including a number of agronomic pests. taxonomic identification of mealybug species is a recurrent problem and represents a major barrier to the establishment of adequate pest management strategies. we combined molecular analysis of three dna markers (28s-d2, cytochrome oxidase i and internal transcribed spacer 2) with morphological examination, for the identification of 176 specimens collected from 40 mealybug populations infesting various ... | 2012 | 22360997 |
| differential impacts of six insecticides on a mealybug and its coccinellid predator. | broad-spectrum insecticides may disrupt biological control and cause pest resurgence due to their negative impacts on natural enemies. the preservation of sustainable pest control in agroecosystems requires parallel assessments of insecticide toxicity to target pests and their key natural enemies. in the present study, the leaf dipping method was used to evaluate the relative toxicity of six insecticides to the striped mealybug, ferrisia dasylirii (cockerell) (hemiptera: pseudococcidae) and its ... | 2018 | 29029382 |
| (1s,3r)-cis-chrysanthemyl tiglate: sex pheromone of the striped mealybug, ferrisia virgata. | derivatives of 2,2-dimethyl-3-(2-methylprop-1-enyl)cyclopropanecarboxylic acid (chrysanthemic acid) are classic natural pyrethroids discovered in pyrethrum plants and show insecticidal activity. chrysanthemic acid, with two asymmetric carbons, has four possible stereoisomers, and most natural pyrethroids have the (1r,3r)-trans configuration. interestingly, chrysanthemic acid-related structures are also found in insect sex pheromones; carboxylic esters of (1r,3r)-trans-(2,2-dimethyl-3-(2-methylpr ... | 2017 | 28823100 |
| alternative food sources for the ladybird brumoides foudrasii (mulsant) (coleoptera: coccinellidae). | the predator brumoides foudrasii (mulsant) (coleoptera, coccinellidae) has been naturally found in plants infested by mealybugs. in this study, the striped mealybug ferrisia dasylirii (cockerell) (hemiptera, pseudococcidae) and anagasta kuehniella zeller (lepidoptera, pyralidae) eggs were evaluated as diets for the development and reproduction of b. foudrasii. brumoides foudrasii immatures developed faster when fed with a. kuehniella eggs than when fed with f. dasylirii. however, the survival an ... | 2017 | 28793028 |
| effects of transgenic cry1ac + cpti cotton on non-target mealybug pest ferrisia virgata and its predator cryptolaemus montrouzieri. | recently, several invasive mealybugs (hemiptera: pseudococcidae) have rapidly spread to asia and have become a serious threat to the production of cotton including transgenic cotton. thus far, studies have mainly focused on the effects of mealybugs on non-transgenic cotton, without fully considering their effects on transgenic cotton and trophic interactions. therefore, investigating the potential effects of mealybugs on transgenic cotton and their key natural enemies is vitally important. a fir ... | 2014 | 24751821 |