Showing papers on "Dacus published in 1988"
TL;DR: Two phenylpropanoid compounds, 2-allyl-4,5-dimethoxyphenol(II) and coniferyl alcohol(III), were characterized from body tissue of wild males of the Oriental fruit fly, Dacus dorsalis, when laboratory-reared males were fed with methyl eugenol.
Abstract: Two phenylpropanoid compounds, 2-allyl-4,5-dimethoxyphenol(II) and coniferyl alcohol(III), were characterized from body tissue of wild males of the Oriental fruit fly,Dacus dorsalis. These compounds accumulated in the rectal glands only when laboratory-reared males were fed with methyl eugenol. Compound II was released into the air during dusk, which coincides with the fly courtship period. Pheromonal and allomonal effects of the phenylpropanoids were examined.
156 citations
TL;DR: The three species described here have different demographic characteristics compared to those of the ecologically similar tephritids Ceratitis capitata and Dacus spp, including preadult survival and development rates, adult survival and fecundity and population parameters.
Abstract: Demographic parameters for Anastrepha ludens (Loew), A. obliqua (Macquart), and A. serpentina (Wiedeman). reared on two artificial diets and several natural hosts are reported. These include preadult survival and development rates, adult survival and fecundity and population parameters such as the intrinsic rate of increase, mean generation time and stable age distribution. All three species displayed similar life history patterns. Egg development required approximately three days, larval development 8-13 days, and pupation 13-17 days. The number of eggs per female (gross fecundity rate) ranged from 84 to 102. A. serpentina, compared with the other two species, displayed much higher survival in the first two weeks of adult life. This led to a higher net reproductive rate despite a lower gross fecundity relative to the other two species. The three species described here have different demographic characteristics compared to those of the ecologically similar tephritids Ceratitis capitata and Dacus spp.
47 citations
TL;DR: For both insects, eggs were the stage most susceptible to cold in oranges, and no significant difference in cold tolerance was seen between young and old larvae, and the effectiveness of 16 d storage at 1.0°C (±0.5°C) against both insects was demonstrated.
Abstract: The presence in Australia of the Queensland fruit fly, Dacus tryoni (Froggatt), and Mediterranean fruit fly, Ceratitis capitata (Wiedemann), restricts access for Australian oranges to some world markets because of plant quarantine regulations. Oranges infested with eggs, young larvae, or old larvae of these insects were stored for various periods at 1 or 1.5°C. For both insects, eggs were the stage most susceptible to cold in oranges, and no significant difference in cold tolerance was seen between young and old larvae. D. tryoni larvae were generally less cold-tolerant than those of C. capitata . The effectiveness of 16 d storage at 1.0°C (±0.5°C) against both insects was demonstrated by 100%mortality on treating more than 90,000 D. tryoni larvae and more than 40,000 C. capitata larvae in oranges.
46 citations
TL;DR: Electrophysiological recordings from cells associated with a thick-walled MPS in C. capitata showed that it responds to trimedlure, a known attractant, and three types of porous sensilla occur only on the funiculus, which are probably chemoreceptors.
Abstract: Four types of sensilla are present on the antennal surface of four tropical tephritid species of economic importanc—the Mexican fruit fly, Anastrepha ludens (Loew); the Mediterranean fruit fly, Ceratitis capitata (Wiedemann); the melon fly, Dacus cucurbitae Coquillett; and the oriental fruit fly, D. dorsalis Hendel. Three types of porous sensilla occur only on the funiculus. Two types of multiporous pitted sensilla (MPS)—thick-walled and thin-walled—house dendritic branches, and both are probably chemoreceptors. Electrophysiological recordings from cells associated with a thick-walled MPS in C. capitata showed that it responds to trimedlure, a known attractant. Multiporous grooved sensilla also occurring on the funiculus were, however, too small for recordings. No-pore sensilla are found only on the scape and pedicel, and electrophysiological recordings show them to be mechanoreceptors.
27 citations
TL;DR: The comparison of immunological characteristics indicates that the cuticle proteins of Dacus oleae have a greater similarity to the CPs of Ceratitis capitata than to theCPs of Drosophila melanogaster.
18 citations
Journal Article•
TL;DR: This review describes the localization and transmission of the symbiont, the attempts made to isolate, cultivate and characterize it, and the host-symbiont interactions.
Abstract: Dacus oleae (Gmelin), which is a major insect pest of the olive tree, is closely associated during all developmental stages with a bacterial symbiont. This review describes the localization and transmission of the symbiont, the attempts made to isolate, cultivate and characterize it, and the host-symbiont interactions.
15 citations
Dissertation•
1 Jan 1988
15 citations
TL;DR: In this paper, population samples of Dacus umbrosus from 4 localities in Peninsular Malaysia were analysed for 13 gene-enzyme systems comprising 18 loci and four loci-HK-1, IDH, EST-D1 and MDH-2 were polymorphic.
Abstract: 1.
1. Population samples of Dacus umbrosus from 4 localities in Peninsular Malaysia were analysed for 13 gene-enzyme systems comprising 18 loci.
2.
2. Four loci-HK-1, IDH, EST-D1 and MDH-2-were polymorphic.
3.
3. All four polymorphic loci were represented by two alleles each.
4.
4. D. umbrosus was characterized by low genetic variability, as measured by proportion of polymorphic loci and heterozygosity.
14 citations
Journal Article•
11 citations
Patent•
22 Sep 1988
TL;DR: In this article, certain cyclohexyl and cycloenyl aliphatic alcohols and ketones are used as attractants for Dacus latifrons, the Malaysian fruit fly.
Abstract: Certain cyclohexyl and cyclohexenyl aliphatic alcohols and ketones are potent attractants for Dacus latifrons, the Malaysian fruit fly. By attracting adult males to field traps, the compounds provide a means for detecting, monitoring, and controlling this agricultural pest.
11 citations
TL;DR: External features of the puparium, larvae and egg of the Queensland fruit fly, Dacus (Bactrocera) tryoni (Froggatt) were studied by scanning electron microscopy and significant morphological characters are described and illustrated.
Abstract: External features of the puparium, larvae and egg of the Queensland fruit fly, Dacus (Bactrocera) tryoni (Froggatt) were studied by scanning electron microscopy and significant morphological characters are described and illustrated. Cephalopharyngeal skeletons are described from examination by light microscopy.
TL;DR: Crick paralysis virus-infected dead Dacus oleae flies were fractionated for the isolation of virus particles, and tissues and organs were examined by electron microscopy for the localization of the sites of active multiplication of the “input” virus.
TL;DR: Ultrasensitive sound detection equipment was evaluated for identifying larvae of the oriental fruit fly, Dacus dorsalis Hendel, in papaya and accuracy in detecting infested fruit approached 100% 5 d after fruit infestation.
Abstract: Ultrasensitive sound detection equipment was evaluated for identifying larvae of the oriental fruit fly, Dacus dorsalis Hendel (Diptera: Tephritidae), in papaya ( Carica papaya L.). In each of the eight laboratory tests, 25 fruit were artificially infested at a rate of 20 eggs per fruit; another 25 fruit were used as controls. After larval eclosion, each fruit was examined daily for 2 min using a computer program developed to recognize larval feeding. Accuracy in detecting infested fruit approached 100% 5 d after fruit infestation. The system correctly identified control fruit ca. 85% of the time until the sixth day, when tissue deterioration also produced signals. Factors causing false positives and problems with implementing the system in the laboratory are discussed.
TL;DR: The next generation BRP system will incorporate EMMARM, a 3D image recognition system, to improve quality and efficiency.
Abstract: ウリミバエの雄誘引物質キュールアとnaled (BRP)の混合剤を木綿ロープ(直径0.7cm,長さ5.0cm)に吸着させ(キュールア・ロープ),ヘリコプターおよび人手により空中と地上から散布を行い,野外に生息する雄個体群抑圧の効果を検討した。キュールア・ロープ剤の散布密度は1ha当たり約40本とし,1982年8月から11月にかけて月1回の割合で計4回散布した。その結果,初回の散布によりトラップに誘殺された防除区の雄の個体数は対照区の約1/6に低下し,トラップごとの日当り平均誘殺数は,3回目の薬剤散布後の調査から4か月間対照区と比較して有意に低くなった。最終散布後の防除区の誘殺数は対照区の1/100であった。以上の結果,不妊虫放飼法によるウリミバエの根絶計画において,不妊虫の放飼に先駆けてキュールア・ロープ剤によって野生雄を防除することは,不妊虫散飼法を効果的に進めるうえで有効な手段になると考えられた。
1 Jan 1988
TL;DR: In this article, Solenopsis geminata produced 100% larval mortality in C. capitata and D. dorsalis pupaewere buried in the soil beneath guava trees in protected cages to permit only ant-sized predators to enter, the average mortality of teneral adult flies from predators was 31.0% and 35.0%, respectively.
Abstract: Predation by Solenopsis geminata (F.) on mature larvae and teneral adult flies of the Mediterranean fruit fly, CeralUis capUata (Wiedemann) and the oriental fruit fly, Dacus dorsalis Hendel, was studied in the laboratory' and on the ground beneath guava trees in Hawaii. In the laboratory.S. geminata produced 100% larval mortality inC. capitata in 15-sec. attacks by an average of 5 ants per larva and 80% larval mortality in D. dorsalis in 15-sec. attacks byan average of4.5 ants per larva. WhenC. capitataand D. dorsalis pupaewere buried in the soil beneath guava trees in protected cages to permit only ant-sized predators to enter, the average mortality of teneral adult flies from predators was 31.0% and 35.0%, respec tively. Total mortality from the time 8-day-old pupaewere placed in the field was73.4% and 70%, respectively, for C. capitata and D. dorsalis. We infer that predacious ants play a prominent role in this mortality.
01 May 1988-Journal of Environmental Science and Health Part A-toxic\/hazardous Substances & Environmental Engineering
TL;DR: Mortalities of laboratory‐reared adult Mediterranean fruit flies, melon flies, and oriental fruit flies fed hydrolyzed protein were less than those fed whole protein or no protein, similar to the diet‐specific longevity relationships.
Abstract: Mortalities of laboratory‐reared adult Mediterranean fruit flies, melon flies, and oriental fruit flies fed hydrolyzed protein were less than those fed whole protein or no protein. Dosage mortalities of these species treated with malathion showed differential toxicities for each species similar to the diet‐specific longevity relationships. Species‐specific sex differences in laboratory mortalities of adult flies were noted: male Mediterranean fruit flies lived longer than females; female melon flies and female oriental fruit flies lived longer than males.
TL;DR: A computer simulation model is described, which predicts the phenology and dynamics of D. oleae using field data and derives all developmental parameters (including developmental variability) from laboratory data, rather than setting the parameters post hoc to produce realistic results.
TL;DR: Amino acid analyses were undertaken on fruit fly infested and uninfested S. mauritianum fruits to determine whether the infested fruit would provide a valuable source of protein during the pigeon breeding season.
TL;DR: When 5-day-old laboratory-raised Queensland fruit flies were fed a dinitrogen-fixing bacterial strain of Klebsiella oxytoca isolated from the crop of a wild fly, acetylene reduction (nitrogenase) activity associated with the flies was detected after 2 to 3 days and persisted for at least 22 days.
Abstract: When 5-day-old laboratory-raised Queensland fruit flies (Dacus tryoni) were fed a dinitrogen-fixing bacterial strain of Klebsiella oxytoca isolated from the crop of a wild fly, acetylene reduction (nitrogenase) activity associated with the flies was detected after 2 to 3 days and persisted for at least 22 days. Flies not fed the dinitrogen-fixing strain were negative for acetylene reduction until 21 days after emergence. Presumably such dinitrogen-fixing bacteria are able to supply some Queensland fruit flies with a small part of their nitrogen requirements, but its importance is unknown.