Efficacy of Jordanian Isolates of Bacillus thuringiensis against the citrus leafminer, Phyllocnistis citrella Stainton (Lepidoptera: Gracillariidae)

Autor:	Mazen A. Ateyyat, Hala Khyami-Horani
Rok vydání:	2002
Předmět:	Fenvalerate Veterinary medicine biology fungi biology.organism_classification Phyllocnistis citrella Lepidoptera genitalia chemistry.chemical_compound Biopesticide Rutaceae chemistry Insect Science Bacillus thuringiensis Botany PEST analysis Agronomy and Crop Science Gracillariidae
Zdroj:	International Journal of Pest Management. 48:297-300
ISSN:	1366-5863 0967-0874
DOI:	10.1080/09670870210149844
Popis:	Several laboratory experiments were conducted to test the efficacy of reference and local isolates of Bacillus thuringiensis ( Bt ) against the Middle East strain of citrus leafminer (CLM), Phyllocnistis citrella, on lemon leaves when they were applied to the surface of intact leafminer. Among the six reference strains examined, the strain Bt kurstaki H3a, 3b, 3c ( Bt 4) showed the highest toxicity after 3 days of application. Bt kurstaki also caused additive mortality to the second and third instar larvae of citrus leafminer when the bacteria were combined with Sunspray ® oil. This combination caused significantly higher mortality (63.3%) than did Bt kurstaki alone or Bt kurstaki mixed with the surfactant Surfix ® . Local Bt isolates J6 ( Bt kurstaki ) and J23 ( Bt thuringiensis, H1) showed no significant toxicity differences towards CLM when compared with the reference strain Bt 4. Addition of Bt kurstaki preparation with Vapcocidin ® (pyrethroid insecticide) reduced the required lethal concentration of...
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::8539aa596eabac19906f5e5062b927ce https://doi.org/10.1080/09670870210149844 Zobrazit plný text záznamu Plný text ve formátu PDF