| immune response of the hibiscus mealybug, maconellicoccus hirsutus green (homoptera: pseudococcidae), to oviposition of the parasitoid anagyrus kamali moursi (hymenoptera: encyrtidae). | anagyrus kamali moursi has been recently introduced into the caribbean as a biological agent against the hibiscus mealybug, maconellicoccus hirsutus green. this host has a cellular defense reaction that involves encapsulation and melanization of the endoparasitoid egg. the impact of this immune response on the parasitoid progeny was assessed, as well as the response of the parasitoid countermeasures to overcome it. under laboratory conditions, significant differences in the immune response were ... | 2000 | 10742512 |
| body size as an indicator of parasitoid quality in male and female anagyrus kamali (hymenoptera: encyrtidae). | the parasitoid anagyrus kamali moursi was recently introduced into the caribbean as a biological control agent against the hibiscus mealybug, maconellicoccus hirsutus green. in the laboratory, parasitoid size, as measured by left hind tibia length, was positively correlated with several indicators of the parasitoid's fitness: longevity, mating preference, fecundity, reproductive longevity, progeny emergence and sex-ratio. when fed ad libidum with honey drops, large male parasitoids lived signifi ... | 2001 | 11583599 |
| susceptibility of maconellicoccus hirsutus (homoptera: pseudococcidae) to methyl bromide. | eggs, crawlers, early nymphs, late nymphs, and adults of the pink hibiscus mealybug, maconellicoccus hirsutus (green), were tested for their susceptibility to methyl bromide in 2-h laboratory fumigations at ambient conditions (25 degrees c, 95% rh). dose-response tests indicated that the egg was the most susceptible life stage with an lc99 of 20.2 mg/liter. based on probit analysis of dose-response data, no significant differences were observed among susceptibilities of the crawler, early stage ... | 2002 | 12539827 |
| irradiation of maconellicoccus hirsutus (homoptera: pseudococcidae) for phytosanitation of agricultural commodities. | studies on the tolerance of pink hibiscus mealybug, maconellicoccus hirsutus (green), to ionizing irradiation were undertaken to determine the dose needed to disinfest commodities of this pest. overall, radiotolerance of m. hirsutus was found to increase with maturity. target doses of 50 gy reduced eclosion of eggs to <50%, but doses as great as 750 gy did not eliminate hatching during the study. at 100 gy, m. hirsutus eggs, crawlers, and nymphs were controlled, because progeny were not produced ... | 2003 | 14503609 |
| sex pheromone of the pink hibiscus mealybug, maconellicoccus hirsutus, contains an unusual cyclobutanoid monoterpene. | two compounds that together constitute the female sex pheromone of the pink hibiscus mealybug (phm), maconellicoccus hirsutus, were isolated, identified, and synthesized. they are (r)-2-isopropenyl-5-methyl-4-hexenyl (s)-2-methylbutanoate [common name is (r)-lavandulyl (s)-2-methylbutanoate] and [(r)-2,2-dimethyl-3-(1-methylethylidene)cyclobutyl]methyl (s)-2-methylbutanoate [which we refer to as (r)-maconelliyl (s)-2-methylbutanoate]. maconelliol is an unusual cyclobutanoid monoterpene, and its ... | 2004 | 15197282 |
| generic vapor heat treatments to control maconellicoccus hirsutus (homoptera: pseudococcidae). | vapor heat treatments were developed against life stages of the mealybug maconellicoccus hirsutus (green) (homoptera: pseudococcidae). treatments tested were 47 degrees c for 5-50 min in 5-min increments and 49 degrees c for 3, 5, 8, 10, and 12 min. all tests were conducted with mixed age m. hirsutus on chinese pea, pisum sativum l. treatment at 47 degrees c required 45 min to kill all m. hirsutus, whereas treatment at 49 degrees c required 10 min. the adult female and nymphal stages were the mo ... | 2004 | 15384336 |
| enantioselective synthesis of the female sex pheromone of the pink hibiscus mealybug, maconellicoccus hirsutus. | the pink hibiscus mealybug, maconellicoccus hirsutus (green), is an exotic insect pest and recently invaded southern california and florida. the female m. hirsutus releases the 2-methylbutanoate of a novel cyclobutanoid monoterpene alcohol (maconelliol) that together with lavandulyl 2-methylbutanoate constitutes the sex pheromone to attract males from a distance. enantioselective syntheses of four different stereoisomers of the major component, maconelliyl 2-methylbutanoate 1, from alpha-pinene ... | 2005 | 15796578 |
| hot water immersion for surface disinfestation of maconellicoccus hirsutus (homoptera: pseudococcidae). | mealybug maconellicoccus hirsutus (green) adults, nymphs, crawlers, and eggs were tested for their susceptibility to hot water immersion at 47, 48, and 49 degrees c. eggs inside ovisacs were found most tolerant with prolonged survival compared with other stages at all temperatures. ovisacs required an average of 1.38, 1.46, and 1.62 times longer treatment duration than adults, nymphs, and crawlers, respectively, for 99.9% predicted mortality at 47, 48, and 49 degrees c. lethal time estimations w ... | 2005 | 15889715 |
| olfactory discrimination among sex pheromone stereoisomers: chirality recognition by pink hibiscus mealybug males. | our previous field studies suggested that the two chiral centers in the sex pheromone of pink hibiscus mealybug, maconellicoccus hirsutus, could elicit different male responses. the chiral center in the acid moiety of the pheromone seemed to be more critical than the alcohol portion of the pheromone molecule for attractiveness. the objective of the current study was to test this hypothesis by deploying stereoisomeric blends in pheromone traps. captures of male m. hirsutus showed that pheromone w ... | 2006 | 16777924 |
| comparison of sex pheromone traps for monitoring pink hibiscus mealybug (hemiptera: pseudococcidae). | the pink hibiscus mealybug, maconellicoccus hirsutus (green) (hemiptera: pseudococcidae), is a highly polyphagous pest that invaded florida in 2002 and has recently been reported from several locations in louisiana. although identification of its sex pheromone in 2004 improved monitoring capabilities tremendously, the effectiveness and efficiency of different pheromone trap designs for capturing males has not been evaluated. we deployed green delta, pherocon ilb, pherocon v, jackson, and storgar ... | 2007 | 17461065 |
| life history of the mealybug, maconellicoccus hirsutus (hemiptera: pseudococcidae), at constant temperatures. | important life history parameters of the mealybug, maconellicoccus hirsutus (green), were characterized on hibiscus (hibiscus rosa-sinensis l.) cuttings at six constant temperatures between 15 and 35 degrees c. the development of m. hirsutus was the fastest at 27 degrees c, where the mealybugs completed development in approximately 29 d. the lower (t(min)) and upper (t(max)) developmental thresholds and the optimal developmental temperature (t(opt)) for the development of female mealybugs were e ... | 2008 | 18419903 |
| widespread infestation of the exotic mealybug species, phenacoccus solenopsis (tinsley) (hemiptera: pseudococcidae), on cotton in india. | a survey was conducted in 47 locations in nine cotton-growing states of india to identify the composition of mealybug species occurring on cotton. results of the taxonomic study showed that two mealybug species, the solenopsis mealybug, phenacoccus solenopsis (tinsley), and the pink hibiscus mealybug, maconellicoccus hirsutus (green), were found to infest cotton plants from all nine cotton growing states of the country. however, p. solenopsis was found to be the predominant mealybug species, com ... | 2009 | 19224663 |
| present status of maconellicoccus hirsutus (hemiptera: pseudococcidae) in the mariana islands and its control by two fortuitously introduced natural enemies. | the mealybug maconellicoccus hirsutus (green) (hemiptera: pseudococcidae), attacks ornamental and fruit crops in the mariana islands. insecticides cannot penetrate the heavy layers of wax that protect the insect's body. we surveyed the mealybug's locally recruited natural enemies and their effects on its population on guam, rota, saipan, and tinian to assess the need for introduction of exotic natural enemies. we monitored population densities of m. hirsutus, those of its natural enemies, and pa ... | 2009 | 19736753 |
| genetic differentiation among maconellicoccus hirsutus (hemiptera: pseudococcidae) populations living on different host plants. | the pink hibiscus mealybug maconellicoccus hirsutus (green) is a dangerous pest that damages a wide variety of agricultural, horticultural, and forestry crops. amplified fragment length polymorphism (aflp) fingerprints were used to characterize the genetic variation of 11 m. hirsutus populations infesting three plant species in nayarit, mexico. analysis was carried out using four primers combinations, producing 590 polymorphic bands. cluster analysis, as well as bootstrap dendrogram and nonmetri ... | 2010 | 20550821 |
| an analysis of histone modifications in relation to sex-specific chromatin organization in the mealybug maconellicoccus hirsutus. | the male-specific heterochromatization of the paternal genome, observed in coccids, is an example of both genomic imprinting and differential regulation of homologous chromosomes. we observed a highly nuclease-resistant chromatin (nrc) organization of a part of the paternal genome in males of maconellicoccus hirsutus as reported earlier in planococcus lilacinus. the nuclease resistance of nrc is correlated with nuclear matrix association and is lost when nrc is dissociated from the matrix. we ca ... | 2010 | 20616523 |
| selection of a fungal isolate for the control of the pink hibiscus mealybug maconellicoccus hirsutus. | maconellicoccus hirsutus green is a widely distributed pest of numerous crops. although synthetic pesticides are used to control this pest, entomopathogenic fungi may provide an alternative control mechanism. three experiments were carried out to select a fungal isolate with the potential to be used as a microbial control agent. the in vitro growth of five isolates of beauveria bassiana sensu lato (bals.) vuill and metarhizium anisopliae sensu lato (metschn.) sorokín, along with three isolates o ... | 2013 | 23255508 |
| first report of maconellicoccus hirsutus (green, 1908) (hemiptera: coccoidea: pseudococcidae) and the associated parasitoid anagyrus kamali moursi, 1948 (hymenoptera: encyrtidae), in brazil. | the pink hibiscus mealybug (phm), maconellicoccus hirsutus (green) (hemiptera: pseudococcidae) and the associated hymenopterous parasitoid, anagyrus kamali moursi, 1948 (hymenoptera: encyrtidae), are reported for the first time in brazil. specimens of the phm were collected on nine hosts plants, annona muricata l. (anonnaceae), glycine max (l.) merr. (fabaceae), centrolobium paraensis tul. (fabaceae), inga edulis mart. (fabaceae), hibiscus rosa-sinensis l. (malvaceae), psidium guajava l. (myrtac ... | 2013 | 23917571 |
| laboratory evaluation of different insecticides against hibiscus mealybug, maconellicoccus hirsutus (hemiptera: pseudococcidae). | hibiscus mealybug, maconellicoccus hirsutus (hemiptera: pseudococcidae), is the major pest of many vegetables, fruits, crops, and ornamental plants causing losses to the farmers and its control has been an issue of significance in the pest management. this study was aimed at evaluating different concentrations (0.06%, 0.1%, and 0.14%) of telsta, advantage, talstar, imidacloprid, and their mixtures against hibiscus mealybug in the laboratory of systematics and pest management at university of guj ... | 0 | 27313962 |
| 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 |