Evaluation of Methods for Sampling Gypsy Moth (Lepidoptera: Lymantriidae) Egg Mass Populations and Development of Sequential Sampling Plans

Kolodny-Hirsch, Douglas M.

doi:10.1093/ee/15.1.122

Cited by 33 publications

(17 citation statements)

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“…We estimated the size of gypsy moth populations each year using mean egg mass counts from four to Þve 0.01-ha plots randomly located in each stand (Kolodny-Hirsch 1986). Because gypsy moth egg masses can remain evident for one or more years after larval eclosion, the ratio of uneclosed egg masses to total egg masses was also determined for egg masses up to 3 m high on tree stems.…”

Section: Methodsmentioning

confidence: 99%

Lepidopteran Communities in Two Forest Ecosystems During the First Gypsy Moth Outbreaks in Northern Michigan

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McCullough

2000

Environ Entomol

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Section: Methodsmentioning

confidence: 99%

Lepidopteran Communities in Two Forest Ecosystems During the First Gypsy Moth Outbreaks in Northern Michigan

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McCullough

2000

Environ Entomol

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“…near Quabbin Reservoir in central Massachusetts. Egg mass densities were determined in autumn 1988 and 1989 by making counts inside 15 circles (7.5 m radius) in each stand (13). Between 19 June and 13 July 1989, weekly counts of gypsy moth larvae were made under burlap bands (14) wrapped around the stems of ca.…”

Section: Methodsmentioning

confidence: 99%

Allozyme and restriction fragment length polymorphism analyses confirm Entomophaga maimaiga responsible for 1989 epizootics in North American gypsy moth populations.

Hajek

Humber

Elkinton

et al. 1990

Proc. Natl. Acad. Sci. U.S.A.

105

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In 1989, populations of North American gypsy moth, Lymantria dispar, in seven contiguous northeastern states were severely reduced by a fungal pathogen. Based on morphology, development, and pathology, this organism appeared to be Entomophaga maimaiga. We have now used allozyme and restriction fragment length polymorphism analyses to confirm this identification. Previously, this mycopathogen had been reported only from gypsy moth populations in Japan. During 1989, E. maimaiga occurred only in areas that had been initially defoliated by gypsy moth >10 years ago. E. maimaiga caused 60-88% mortality in late instar larvae on research sites in central Massachusetts.

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“…Gypsy moth populations are mainly monitored using aerial maps of forest defoliation, counts of overwintering egg masses (Kolodny-Hirsch 1986), and counts of male moths in pheromone baited traps (Talerico 1981;Ravlin et al 1987). Particularly, egg mass counts are the most reliable method for assessing decisions (Ravlin et al 1987).…”

Section: Discussionmentioning

confidence: 99%

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Abstract. Irnidayanti Y. 2012. The effect of zearalenone mycotoxins administration at late gestation days on the development and reproductive organs of mice. Nusantara Bioscience 4: 1-5. Zearalenone was injected subcutaneously with a dose of 30 mg/kg body weight to pregnant mice on the 13 to 16 days. Control was given only sesame oil. Control and treated mice were killed on day 18 of gestation by cervical dislocation. Observations of maternal body weight, reproductive performance, external and internal malformation were conducted. Histological analysis of fetal ovaries, uterus, and testes were also done. The results revealed that administration of zearalenone to mice at late gestation was not teratogenic. Zearalenone caused a tendency that the primordial follicles and follicular cells relatively decreased in number and the number of the degenerate primordial follicle relatively increased. Effects of zearalenone on the uterus caused a significant increase in the height of lumen epithelial cells and in the thickness of the uterine wall were significantly. The lamina propria and myometrium started to differentiate. In the male fetus, zearalenone caused a tendency deacrease in number of the Leydig cells.Key words: zearalenone, primordial follicle, follicle cells, uterus, Leydig cells. Abstrak. Irnidayanti Y. 2012. Pengaruh pemberian mikotoksin zearalenon pada umur kebuntingan lanjut terhadap perkembangan dan organ reproduksi mencit.Nusantara Bioscience 4: 1-5.Zearalenon diberikan pada induk mencit bunting pada umur kebuntingan 13 sampai dengan 16 hari secara subkutan. Mencit kontrol hanya diberi minyak wijen. Mencit kontrol dan perlakuan dibunuh pada umur kebuntingan 18 hari secara dislokasi leher. Pengamatan dilakukan terhadap berat badan induk, penampilan reproduksi, kelainan eksternal dan internal. Pengujian juga dilakukan terhadap histologis ovarium fetus, uterus fetus dan testis fetus. Hasil penelitian menunjukkan bahwa pemberian zearalenon kepada mencit pada umur kebuntingan lanjut, tidak bersifat teratogenik. Zearalenon cenderung menyebabkan folikel-folikel primordial dan sel-sel folikel primordial, relatif jumlahnya menurun dan jumlah folikel primordial yang berdegenerasi relatif meningkat. Pemberian zearalenon menyebabkan bertambah tingginya sel-sel epitel pada lumen uterus, secara signifikan dan bertambahnya ketebalan dinding uterus secara signifikan Lamina propria dan miometrium sudah mulai berdifferensiasi. Pada fetus jantan, zearalenon cenderung menyebabkan penurunan jumlah sel-sel Leydig.

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Evaluation of Methods for Sampling Gypsy Moth (Lepidoptera: Lymantriidae) Egg Mass Populations and Development of Sequential Sampling Plans

Cited by 33 publications

References 0 publications

Lepidopteran Communities in Two Forest Ecosystems During the First Gypsy Moth Outbreaks in Northern Michigan

Lepidopteran Communities in Two Forest Ecosystems During the First Gypsy Moth Outbreaks in Northern Michigan

Allozyme and restriction fragment length polymorphism analyses confirm Entomophaga maimaiga responsible for 1989 epizootics in North American gypsy moth populations.

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