Bacillus thuringiensis: Natural and Recombinant bioinsecticide Products

Baum, James A.; Johnson, Timothy B.; Carlton, Bruce C.

doi:10.1385/0-89603-515-8:189

Cited by 83 publications

(49 citation statements)

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“…Spodoptera spp. are diffi cult to control with Bt-based biopesticide (strain HD1), while Heliothis virescens (Boddie) and Plutella xylostella (L.) are not (Baum et al 1999). Beegle & Yamamoto (1992) also confi rm the results that Bt is not much effi cient against S. frugiperda.…”

mentioning

confidence: 81%

Use of by-products rich in carbon and nitrogen as a nutrient source to produce Bacillus thuringiensis (Berliner)-based biopesticide

Valicente¹,

Mourão²

2008

Neotrop. entomol.

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mentioning

confidence: 81%

Use of by-products rich in carbon and nitrogen as a nutrient source to produce Bacillus thuringiensis (Berliner)-based biopesticide

Valicente¹,

Mourão²

2008

Neotrop. entomol.

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“…Another member of the B. cereus group, B. thuringiensis (Bt), is widely used in a broad-spectrum insecticide spray, and genetically engineered into plants to control pests (Hofte & Whiteley 1989, Lereclus et al 1993, Huang et al 1999. Bt is widely claimed to be a 'natural' and 'safe' insecticide and is commonly sprayed on a wide variety of crops to control insect pests (Baum et al 1999). It is specifically recommended to control the major insect pest in oil palm plantations (Hoong et al 1992), which occupy much of the lowland areas of New Britain.…”

Section: Bacillusmentioning

confidence: 99%

Identification of bacteria associated with a disease affecting the marine sponge Ianthella basta in New Britain, Papua New Guinea

Cervino¹,

Winiarski-Cervino²,

Polson³

et al. 2006

Mar. Ecol. Prog. Ser.

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Ianthella basta marine sponges in Kimbe Bay, west New Britain, Papua New Guinea were affected by a disease, and exhibited high mortality, between 1996 and 2000. These fan-shaped sponges were mottled with brown lesions, rotted tissue and large holes. The decayed tissue was surrounded by brown biofilm that smothered the ostia openings. Since 1996, I. basta suffered its highest mortality at 3 sites within 16-20 km of the shore of west New Britain. No mortality was observed at 3 other locations further from shore (between 27-41 km), nor at 10 sites located more than 41 km from shore outside of Kimbe Bay in deeper waters, nor at the site nearest to shore. Comparison of the carbon source utilization patterns of 99 bacterial isolates from all healthy and diseased sponges revealed 5 species of bacteria specifically present in diseased I. basta. These bacteria were not present in healthy sponge samples. Bacteria isolated from affected sponges and inoculated onto healthy sponges caused disease signs similar to those in field specimens. The 16S rRNA genes from these bacteria were sequenced and found to correspond with 2 species of Bacillus and 3 species of Pseudomonas. The closest relatives of these bacteria based on BLAST searches included many terrestrial pathogens and species that are used as pathogens against insects and fungi in integrated pest control management. The bacteria causing disease in I. basta may thus originate from pesticides applied to agricultural land, predominantly oil palm plantations, in west New Britain. The possibility that these bacteria can pass virulence factors to marine bacteria through horizontal gene transfer needs to be investigated, as this may have unexpected impacts on marine ecosystems.

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“…Commercial preparations of Bt (spore-crystal mixtures) have been registered as insecticides since 1961, and a considerable amount of toxicological data has been collected over the years (Baum et al, 1999). However, the first isolate with significant toxicity to coleopterous insects, Bacillus thuringiensis subsp.…”

Section: Introductionmentioning

confidence: 99%

Insecticidal effects of some biological agents on Agelastica alni (Coleoptera: Chrysomelidae)

Sezen

Demirbağ

2006

Biologia

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Abstract:The alder leaf beetle (Agelastica alni L., Coleoptera: Chrysomelidae) causes approximately 10% of total economic damage to hazelnut product per year in Turkey. A. alni larvae are susceptible to several pathogens indigenous to the area in which these insects occur in Turkey. In the present study, in order to find a more effective and safer biological control agent against this common pest, we evaluated the various biological agents' insecticidal activity during the four hazelnut seasons from 2002 to 2005 on the larvae of the alder leaf beetle collected from the vicinity of Trabzon, Turkey. The tested agents are 25 insect-originating bacteria, 2 bacterial toxins and 1 viral preparation. The results showed that the highest insecticidal activity was obtained by bacterial isolates at 1.8 × 10 9 bacteria/mL dose, within ten days on the larvae of A. alni. These are 90% for Bacillus thuringiensis biovar tenebrionis (4AA1), Bacillus sphaericus (Ar4, isolated from Anoplus roboris L., Col.: Curculionidae), and Bacillus thuringiensis (Mm2, isolated from Melolontha melolontha L., Col.: Scarabaeidae). Our results indicate that these isolates may be valuable as biological control agent.

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Bacillus thuringiensis: Natural and Recombinant bioinsecticide Products

Cited by 83 publications

References 0 publications

Use of by-products rich in carbon and nitrogen as a nutrient source to produce Bacillus thuringiensis (Berliner)-based biopesticide

Use of by-products rich in carbon and nitrogen as a nutrient source to produce Bacillus thuringiensis (Berliner)-based biopesticide

Identification of bacteria associated with a disease affecting the marine sponge Ianthella basta in New Britain, Papua New Guinea

Insecticidal effects of some biological agents on Agelastica alni (Coleoptera: Chrysomelidae)

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