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Use of by-products rich in carbon and nitrogen as a nutrient source to produce Bacillus thuringiensis (Berliner)-based biopesticide Neotropical Entomology
Valicente,Fernando H.; Mourão,André H.C..
The amount and sources of carbon and nitrogen used to produce Bacillus thuringiensis (Berliner)-based biopesticide may influence the quality of the final product. The objective of this research was to test different levels of carbon and nitrogen: medium 1 - 1.5% maize glucose + 0.5% soy flour, medium 2 - 3.0% maize glucose + 1.0% soy flour, medium 3 - 1.0% maize glucose + 3.0% soy flour and medium 4 - Luria Bertani (LB) + salts (FeSO4, ZnSO4, MnSO4, MgSO4). The seed culture was produced in LB medium plus salt, under agitation (200 rpm) for 18h at 30ºC. The strain 344 of Bt was used (B. thuringiensis var tolworthi - belonging to the Embrapa's Bt Bank). The pH was measured at regular intervals. and After culturing for 96h, the pH of the four tested media was...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Spodoptera frugiperda; Biocontrol; Insect pest management; Microbial insecticide.
Ano: 2008 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1519-566X2008000600012
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Seasonal dynamics and management of whitefly ( Bemesia tabaci Genn.) in tomato ( Solanum esculentum Mill.) BABT
Sharma,Devinder; Maqbool,Asifa; Jamwal,Vishav Vir Singh; Srivastava,Kuldeep; Sharma,Ashutosh.
ABSTRACT Studies on seasonal dynamics of white fly (Bemesia tabaci) on tomato (Solanum esculentum var. Pusa Ruby) revealed that it appeared first during the 13th and reached maximum during 21st standard meteorological week. A positive correlation between adult population and abiotic factors viz. temperature (maximum and minimum) and sunshine hours was observed, whereas humidity (maximum and minimum) and rainfall showed a negative correlation with it. Taken together, the key weather parameters studied, caused 89.00 per cent variation in whitefly population (R2 value). Combination of carbofuran (soil application) + imidacloprid (seed treatment ) + imidacloprid (foliar application) proved significantly superior and caused maximum reduction in whitefly...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Tomato; Whitefly; Insect pest management.
Ano: 2017 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132017000100423
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