Laboratory trials were carried out on the influence of low temperatures on adult survival, reproduction and egg hatch of the lesser grain borer, Rhyzopertha dominica (F.) (Coleoptera Bostrichidae). Temperatures of 3, 7, 12, 17 and 27 °C were studied. Results show the lethal time (LT) required for killing 5%, 50% and 95% of the tested insects was significantly affected by temperature but not adu...

Stored product beetles that are resistant to the fumigant pesticide phosphine (hydrogen phosphide) gas have been reported for more than 40 years in many places worldwide. Traditionally, determination of phosphine resistance in stored product beetles is based on a discriminating dose bioassay that can take up to two weeks to evaluate. We developed a diagnostic cleaved amplified polymorphic seque...

Abstract Background The lesser grain borer, Rhyzopertha dominica is a serious pest of stored grains. Fumigation and contact insecticides play major role in managing this globally. While insects are developing genetic resistance to chemicals, hormonal analogues such as s-methoprene key reducing general pressure well populations that resistant fumigants neurotoxic insecticides. However, has been ...

Studies on the efficacy of indigenous plant products and cow dung powder lesser grain borer, Rhyzopertha dominica (Fabricius) in wheat (Triticum aestivum), were conducted to determine effects aforementioned Percent Mortality, Adult Emergence, Weight loss. This experiment was carried out using a Completely Randomized Design (CRD). orientation found be maximum control minimum Mustard oil treatmen...

The stored-product insects are one of the major causes losses in stored cereals. Most control measures still rely on a synthetic pesticide usage, but due to its negative side effects goods, human health, and environment, there is an urgent need for alternative control. A natural formulation based diatomaceous earth (DE) SilicoSec®, enhanced with botanicals (essential oil lavender, corn oil, bay...

Fractions obtained from partitioning of aerial methanolic extract of Euphorbia Aellenii with chloroform (E2), ethyl acetate (E3), n-butanol (E4) and water (E5) were investigated in vitro for their phytotoxicity, insecticidal, anti-leishmanial, cytotoxicity, antibacterial and antifungal activities. Sample E2 appeared to have significant phytotoxic activity. In the insecticidal screening study o...