Toxicity of avermectin and fenvalerate to the Eriophyid gall miteEriophyes dioscoridisand the predacious mitePhytoseius finitimus(Acari: Eriophyidae; Phytoseiidae)

El-Banhawy, E. M.; El-Bagoury, M. E.

doi:10.1080/01647958508683423

Cited by 13 publications

(9 citation statements)

References 4 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“… Pfeiffer (1985) found Abamectin to be an effective acaricide against the tetranychid pest, Panonychus ulmi (Koch), and have no significant effect on the populations of the predacious phytoseiid mite, Amblyseius fallacis (Garman), although Abamectin initially reduced predator densities when used in a full‐season program. Banhawy and Bagoury (1985) reported that the activity of Abamectin residues lasted longer against the eriophyid pest than against the phytoseiid predator, whereas the opposite was true for Cartap residues. Toxicity of Abamectin was lower to the phytoseiid predator, Typhlodromus occidentalis Nesbitt, than to the tetranychids pest, Tetranychus urticae Koch.…”

Section: Discussionmentioning

confidence: 99%

Investigations on side‐effects of the mixed biocide GCSC‐BtA on different predators of Plutella xylostella (L.) (Lep., Plutellidae) in southeastern China

Liu

Şengonça²

2002

Anz Schadlingskd

View full text Add to dashboard Cite

The present paper deals with laboratory studies on side‐effects of the mixed biocide GCSC‐BtA on Plutella xylostella (L.) (Lep., Plutellidae) and its predators, e. g. Amblyseius longispinosus (Evans) (Acari, Phytoseiidae), Erigonidium graminicola (Sundvall) (Araneae, Linyphiidae), Orius similis Zheng (Het., Anthocoridae) and Coccinella septempunctata L.(Col., Coccinellidae), in comparison to the commercial insecticides, e. g. Abamectin, Tebufenozide, Dichlorvos, Cartap and Lambda‐cyhalothrin.  The results showed that GCSC‐BtA was highly toxic to the 3rd instar of P. xylostella with 91.18 % mortality, followed by Cartap with 84.38 %, Abamectin with 78.00 %, Tebufenozide with 75.57 %, Lambda‐cyhalothrin with 63.75 % and Dichlorvos with 50.86 % mortality. On the other hand, GCSC‐BtA was found to be comparatively less toxic to the predators, causing 31.11 %, 13.33 %, 11.54 % and 6.00 % mortalities in A. longispinosus, E. graminicola, O. similis and C. septempunctata, respectively. For comparison, the mortalities recorded for Abamectin, Tebufenozide, Dichlorvos, Cartap, Lambda‐cyhalothrin were 72.94 %, 55.55 %, 70.00 %, 53.26 % and 98.85 % in A. longispinosus, 46.51 %, 55.10 %, 60.00 %, 46.00 % and 73.68 % in E. graminicola, 22.00 %, 16.00 %, 35.71 %, 26.78 % and 81.03 % in O. similis, 15.55 %, 19.64 %, 28.00 %, 16.66 % and 41.79 % in C. septempunctata, respectively.  Cluster analysis was introduced to group the mortalities caused by the treatments into three toxicity groups with the distance of D = 4.1. The 1st group consisted of GCSC‐BtA characterized with low toxicity to all the predators tested with 15.49 % mortality on average (highest 31.11 % and lowest 6.00 %). The 2nd group consisted of Abamectin, Tebufenozide, Dichlorvos and Cartap with moderate toxicity to the predators with 39.96 % mortality on average. The 3rd group included Lambda‐cyhalothrin with high toxicity to the predators with 73.83 % mortality on average (highest 98.85 % and lowest 41.70 %). The susceptibility of the pest and its predators to GCSC‐BtA and the insecticides is discussed. GCSC‐BtA as a biological control agent is recommended for use in the integrated pests control programs in the vegetable fields.

show abstract

Section: Discussionmentioning

confidence: 99%

Investigations on side‐effects of the mixed biocide GCSC‐BtA on different predators of Plutella xylostella (L.) (Lep., Plutellidae) in southeastern China

Liu

Şengonça²

2002

Anz Schadlingskd

View full text Add to dashboard Cite

show abstract

“…Therefore, an integrated spider mite management with a workable combination of chemical and biological control tactics could be of great use. This requires the selective use of pesticides, and may be achieveable with abamectin, a compound reported to be more toxic to the spider mites than to predatory mites (Grafton-Cardwell and Hoy 1983, El-Banhawy and El-Bagoury 1985, Hoy and Cave 1985, Zhang and Sanderson 1990). As such, information about the side effects of abamectin on N. longispinosus is therefore essential.…”

mentioning

confidence: 98%

Influence of Sublethal Exposure to Abamectin on the Biological Performance of Neoseiulus longispinosus (Acari: Phytoseiidae)

Ibrahim

Yee

2000

View full text Add to dashboard Cite

Effects of sublethal exposure to abamectin on the biological performance of Neoseiulus longispinosus (Evans) were studied under ambient laboratory conditions of 28 +/- 2 degrees C and 80 +/- 15% RH with 24 h light. The red form of the twospotted spider mite, Tetranychus urticae Koch, complex (Acari: Tetranychidae), was offered as prey. The LC50 obtained from the contact bioassay at 48 h after treatment was 0.015 ppm (AI). A big change in kill for a given variation in dosage for the regression slope probably indicated that abamectin was unlikely selective. Sublethal exposure to abamectin caused a reduction in survival with the female reaching 50% mortality by the sixth day and the male 4 d later. The mean preoviposition period was extended by almost 1 d, whereas the mean oviposition period was shortened by almost 5 d causing a reduction in the mean fecundity female-1 to almost half that of the untreated females. The net reproductive rate (Ro), the intrinsic rate of increase (rm), and the finite rate of increase (lambda) of the treated females were markedly inferior. Treated males were seriously affected; the mean life span was almost half that of the untreated.

show abstract

“…At similar concentration avermectin was reported almost not toxic to the adult females of the predacious mites Metaseiulus occidentalis (Nesbitt) (Graften-Cardwell & Hoy, 1983), P.finitimus (= plumifer) Ribaga, (EI-Banhawy & EI-Bagoury, 1985). In contrast, dicofol was a detrimental substance to the immature stage of A. gossipi.…”

Section: Discussionmentioning

confidence: 88%

“…Recently, growers have been complaining that dicofol showed impotency toward the target acarine pests. It is suggested to replace it w~th avermectin, which is effective on mites at very low dosages (Putter et al, 1981 ;EI-Banhawy & Anderson, 1985) and slightly toxic by contact to predacious mites (Grafton-Cardwell & Hoy, 1983;EI-Banhawy & EI-Bagoury, 1985;Hoy & Cave, 1985). Other selective compounds usually exhibit high toxicity when ingested through the prey [benomyl (Nakashima & Croft, 1974); methoprene (EI-Banhawy, 1977), fentrifanil (EI-Banhawy, 1978)].…”

mentioning

confidence: 97%

Effect of avermectin and dicofol on the immatures of the predacious miteAmblyseius gossipi with a special reference to the secondary poisoning effect on the adult female [Acari: Phytoseiidae]

Reda

El-Banhawy

1988

Entomophaga

View full text Add to dashboard Cite

Toxicity of avermectin and fenvalerate to the Eriophyid gall miteEriophyes dioscoridisand the predacious mitePhytoseius finitimus(Acari: Eriophyidae; Phytoseiidae)

Cited by 13 publications

References 4 publications

Investigations on side‐effects of the mixed biocide GCSC‐BtA on different predators of Plutella xylostella (L.) (Lep., Plutellidae) in southeastern China

Investigations on side‐effects of the mixed biocide GCSC‐BtA on different predators of Plutella xylostella (L.) (Lep., Plutellidae) in southeastern China

Influence of Sublethal Exposure to Abamectin on the Biological Performance of <I>Neoseiulus longispinosus</I> (Acari: Phytoseiidae)

Effect of avermectin and dicofol on the immatures of the predacious miteAmblyseius gossipi with a special reference to the secondary poisoning effect on the adult female [Acari: Phytoseiidae]

Contact Info

Product

Resources

About