A total of 128 Bacillus cereus-like strains isolated from fresh fruits and vegetables for sale in retail shops in Denmark were characterized. Of these strains, 39% (50/128) were classified as Bacillus thuringiensis on the basis of their content of cry genes determined by PCR or crystal proteins visualized by microscopy. Random amplified polymorphic DNA analysis and plasmid profiling indicated t...

diamondback  moth,  piute/la xylostella  l. is  a  major pest of cruciferous  crops worldwide.   it  out broke in cabbage   fields  of tehran province   in  1999 and   caused considerable   yield   losses.  seven treatments  including  biological   and chemical   pesticides   were used in   the field  test.  these   treatments were as follow:  consult  (ec i 0%) 0.4 kg/h & 0.5 kg/h, carbaryle  ...

This study was conducted to determine the suitable time to apply the Bacillus thuringiensis sub species kurstaki against the larvae of the Metisa plana oil palm. The aim of this study is to search for the most economical method for using the B. thuringiensis sub species kurstaki. Owing to that matter, the larvae was sprayed at three different times, 0800, 1200, and1600, with 0.68ml of the B. th...

53 The microbial insecticide, Bacillus thuringiensis (Bt), has become the mainstay of non-chemical control of 54 Lepidopteran pests, either as sprays or through the incorporation of Bt toxins into transgenic crops. Given 55 the wide use of Bt, it is striking that currently only one pest species, Plutella xylostella, has been reported 56 to have developed significant resistance to Bt outside the...

We used high-pH anion-exchange chromatography with pulsed amperometric detection to quantify the monosaccharides covalently attached to Bacillus thuringiensis HD-1 (Dipel) crystals. The crystals contained 0.54% sugars, including, in decreasing order of prevalence, glucose, fucose, arabinose/rhamnose, galactose, galactosamine, glucosamine, xylose, and mannose. Three lines of evidence indicated t...

The survival of KS-SC DiPel-resistant and -susceptible European corn borer, Ostrinia nubilalis (Hübner), was evaluated on different tissues from corn, Zea mays L., hybrids, including a nontransgenic and two transgenic corn plants (events MON810 and Bt11) expressing high doses of Bacillus thuringiensis (Bt) Cry1Ab. The survival of Bt-resistant and -susceptible third instars was similar after a 5...