CERTAIN BIOLOGICAL ASPECTS, THRESHOLD OF DEVELOPMENT AND THERMAL UNITS FOR HYMENIA recurvalis (FAB.), (LEPIDOPTERA: PYRALLIDAE)

El-Gendi, Seham S.; Mostafa, F. F. M.; Aly, Fatma A.; Hussein, S.

doi:10.21608/ajs.2006.15580

Cited by 2 publications

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“…The emerged adults were seperated to female and male for mating. The eggs were incubatied until hatching and reached to 2 nd instar larvae (El-Gendi et al, 2006;Hussein & Abd El-Gayed, 2008).…”

Section: Methodsmentioning

confidence: 99%

STUDIES ON SOME ECOLOGICAL AND BIOLOGICAL OBSERVATIONS OF THE PARASITOIDS, Apanteles SPP. (HYMENOPTERA: BRACONIDAE) ON THE HAWAIIAN BEET WEBWORM, Hymenia recurvalis FAB. (LEPIDOPTERA: PYRALIDAE) AT FAYOUM DISTRICT

Abd-Elgayed

Hussein²,

Saleh³

2010

Journal of Plant Protection and Pathology

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The present work was carried out at Fayoum district to study ecological and biological observations on the parasitoids, Apanteles spp which associated with the Hawaiian beet webworm, Hymenia recurvalis Fab. during two seasons (2006/2007 and 2007/2008). Results showed that the parasitoids were recorded parasitizing on 2 nd instar larvae of this insect pest.The Hawaiian beet webworm and its parasitoids, Apanteles spp. (Apanteles hymeniae Wilknson and A. marginiventris Creeson ) had one peak extended from first season until the end of December during the two successive seasons of study. Apanteles marginiventris was reared under laboratory conditions (25 ± 1 °C and 70 ± 5 % R.H.). Longevity of males and females averaged 3.90 and 6.30 days. Mean number of eggs laid was 15.10 eggs / female. Total duration of immature stages was 16.

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Section: Methodsmentioning

confidence: 99%

STUDIES ON SOME ECOLOGICAL AND BIOLOGICAL OBSERVATIONS OF THE PARASITOIDS, Apanteles SPP. (HYMENOPTERA: BRACONIDAE) ON THE HAWAIIAN BEET WEBWORM, Hymenia recurvalis FAB. (LEPIDOPTERA: PYRALIDAE) AT FAYOUM DISTRICT

Abd-Elgayed

Hussein²,

Saleh³

2010

Journal of Plant Protection and Pathology

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“…These pests usually have an adaptability to a wide range of climatic conditions, mainly temperature and relative humidity, especially S. recurvalis (Aderolu et al, 2013). According to Shirai (2006) and El-Gendi, Mostafa, Aly, and Hussein (2006), biological activities such as flight, longevity and developmental thresholds are greatly affected by temperatures which alternate with seasons.…”

Section: Severity Of Damage By Lepidopteran Defoliators Was Greater Dmentioning

confidence: 99%

Seasonal occurrence of amaranth Lepidopteran defoliators and effect of attractants and amaranth lines in their management

Othim

Kahuthia-Gathu

Akutse

et al. 2018

J Applied Entomology

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Lepidopteran defoliators are the most important pests of cultivated amaranths causing severe losses in cultivated fields worldwide. Leaf‐webbers, whose larvae fold, web or glue amaranth leaves using their silken webs as they feed and leaf‐worms which cause windowing but do not glue or fold leaves are mainly reported. Sustainable management strategies for these pests are still lacking given the adverse effects of synthetic pesticides. Field experiments were conducted during two seasons at two different sites in Central Kenya, to assess amaranth lepidopteran pests and their natural enemies’ population dynamics, evaluate the efficacy of phenylacetaldehyde (PAA) floral lure as attractant and the effects of three amaranth lines (Abuk1, Abuk2 and Abuk8) on the pests’ abundance and damage. Abundance of leaf‐webbers (p = .537), leaf‐worms (p = 1) and their associated parasitoids (p = .083) did not differ between the dry and wet seasons. The parasitoids Atropha tricolor and Apanteles sp. caused parasitism of 6.2% and 33.3% on Spoladea recurvalis and Choristoneura sp., respectively. PAA incorporated traps attracted moths that were largely unrelated to the damaging larvae observed on the crops with only 0.5% of total trap catches being S. recurvalis. Sub‐sites in which PAA were incorporated had significantly higher number of leaf‐webber larvae on the crops compared to control sub‐sites (p = .014). Amaranth lines studied had significant (p = .007) effect on lepidopteran defoliators’ abundance and damage, with fewer leaf‐webbers and lower severity of damage recorded on Abuk2 compared to Abuk8. The implication of these findings for the control of lepidopteran defoliators in East Africa is discussed.

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CERTAIN BIOLOGICAL ASPECTS, THRESHOLD OF DEVELOPMENT AND THERMAL UNITS FOR HYMENIA recurvalis (FAB.), (LEPIDOPTERA: PYRALLIDAE)

Cited by 2 publications

References 0 publications

STUDIES ON SOME ECOLOGICAL AND BIOLOGICAL OBSERVATIONS OF THE PARASITOIDS, Apanteles SPP. (HYMENOPTERA: BRACONIDAE) ON THE HAWAIIAN BEET WEBWORM, Hymenia recurvalis FAB. (LEPIDOPTERA: PYRALIDAE) AT FAYOUM DISTRICT

STUDIES ON SOME ECOLOGICAL AND BIOLOGICAL OBSERVATIONS OF THE PARASITOIDS, Apanteles SPP. (HYMENOPTERA: BRACONIDAE) ON THE HAWAIIAN BEET WEBWORM, Hymenia recurvalis FAB. (LEPIDOPTERA: PYRALIDAE) AT FAYOUM DISTRICT

Seasonal occurrence of amaranth Lepidopteran defoliators and effect of attractants and amaranth lines in their management

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