Dailay and seasonal density of four entomophagous predators on cotton in upper Egypt

Hassanein, M. H.; Afify, A. M.; Farghaly, H. Th.

doi:10.1007/bf02371784

Cited by 4 publications

(3 citation statements)

References 7 publications

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“…and mean temps.) while it was negative significant relation between the predator and mean of R. H. These results are in agreement with according to Hassanein et al (1969). ; Metwally et al (1979).…”

Section: Table (2): Mean Numbers Of Coccinella Undecimpunctata On Dill Plants Atsupporting

confidence: 91%

EVALUATION OF Coccinella undecimpunctata L. AGAINST Brevicoryne brassice (Linnaeus) ON DILL PLANTS

El-Wahab¹,

Ebrahim²,

Shaalan³

2021

Journal of Plant Protection and Pathology

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Field experiment was conducted at El-Fayoum Governorate during two successive seasons 2007and 2008 to study the population fluctuation of Brevicoryne brassice (Linnaeus) and Coccinella undecimpunctata L. and evaluation of C. undecimpunctata against B. brassice. Moreover, to evaluate the effect of certain weather factors (daily mean temperature, daily mean R.H.) on the pest and predator on Dill plant. The obtained data revealed that, the mean number of aphid species individuals began to appear on January and population increased to reach the maximum average on April during 2007 season. In the second season, the infestation of the individuals started to appear at the last week of December The mean number increased gradually to record two highly peaks on March and April The correlation between population fluctuation of aphid species and means of weekly (max., min. and mean Temps.) was positive and significant during 2006/2007 and 2007/2008 seasons. In addition, the correlation between insect infestation and mean of relative humidity was negative significant correlation during 2006/2007 and 2007/2008 seasons. Generally, mean of the total number of C. undicempunctata was higher in the second season than the first one. Releasing of C. undecimpunctata at rate 6 adult/ 2 m 2 gave the best reduction of aphid individuals recording general mean reduction percentage 93.14%. Followed by the second level (4 adult / 2 m 2 ) this suppressed the population by 85.62% and the low level (2 adult / 2 m2) with 81.86%, respectively.

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Section: Table (2): Mean Numbers Of Coccinella Undecimpunctata On Dill Plants Atsupporting

confidence: 91%

EVALUATION OF Coccinella undecimpunctata L. AGAINST Brevicoryne brassice (Linnaeus) ON DILL PLANTS

El-Wahab¹,

Ebrahim²,

Shaalan³

2021

Journal of Plant Protection and Pathology

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“…several Tachinidae, such as Exonsta (=Tachina) larvarum (L), and Peribaea orbata (Wiedemann) (quoted as Actia palpalisl). However, the predators were more efficient than the parasitoids, even though they were mostly aphid predators secondarily preying on S. littoralis in the absence or when aphid populations were low, (Hassanein et al, 1968). They mainly included Coccinella undecimpundata Linnaeus., Cheilomenes propinqua ssp.…”

Section: Introductionmentioning

confidence: 97%

“…(all Coccinellidae), and a staphylinid, Paederus fuscipes Curtis. All these predators were recovered by subsequent workers (Hassanein et al, 1968;Tawfik et al, 1976). An attempt to increase natural control by mass rearing and periodic release of Coccinella undecempunctata and Trichogramma 'evanescens' remained unsuccessful.…”

Section: Introductionmentioning

confidence: 99%

Spodophagus, a new genus of Pteromalidae (Hymenoptera), for an important parasite of Spodoptera littoralis (Lepidoptera: Noctuidae) in Madagascar

Delvare

Rasplus

1994

Bull. Entomol. Res.

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Spodophagus, gen. n. (Pteromalidae: Pteromalinae), is described to include the single species S. lepidopterae comb, n., which was originally described from Madagascar by Risbec (1952) in the genus Oxyglypta. A lectotype is selected for 0. lepidopterae, and the species is redescribed and illustrated. This pteromalid is a parasitoid of Spodoptera littoralis, an important pest, which is resistant to several classes of insecticides in Madagascar. Spodophagus lepidopterae is thus a potential agent for the biological control of Spodoptera spp. in Africa and elsewhere.

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Freiland-Untersuchungen über die Wirkung verschiedener Insektizide auf das Vorkommen von zwei entomophagenCoccinelliden an Baumwolle in Oberägypten

Afify¹,

Farghaly²,

Hassanein³

1969

Anzeiger für Schädlingskunde und Pflanzenschutz

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Dailay and seasonal density of four entomophagous predators on cotton in upper Egypt

Cited by 4 publications

References 7 publications

EVALUATION OF Coccinella undecimpunctata L. AGAINST Brevicoryne brassice (Linnaeus) ON DILL PLANTS

EVALUATION OF Coccinella undecimpunctata L. AGAINST Brevicoryne brassice (Linnaeus) ON DILL PLANTS

Spodophagus, a new genus of Pteromalidae (Hymenoptera), for an important parasite of Spodoptera littoralis (Lepidoptera: Noctuidae) in Madagascar

Freiland-Untersuchungen über die Wirkung verschiedener Insektizide auf das Vorkommen von zwei entomophagenCoccinelliden an Baumwolle in Oberägypten

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