Sgabd-2 plays specific role in immune response against biopesticide Metarhizium anisopliae in Aphis citricola.

Metarhizium anisopliae is an effective biopesticide for controlling Aphis citricola, which has developed resistance to many chemical pesticides. However, the powerful immune system of A. citricola has limited the insecticidal efficacy of M.

Effects of Genetic Background and Altitude on Sugars, Malic Acid and Ascorbic Acid in Fruits of Wild and Cultivated Apples ( sp.).

Soluble sugars, malic acid, and ascorbic acid in 17 apple cultivars ( Borkh.) and three wild forms ( 'Saiwaihong', (Willd.) Borkh.

Quantitative Analysis of the Migration and Accumulation of Bacillus subtilis in Asparagus officinalis.

Bacillus subtilis B96-II is a broad-spectrum biological control strain. It effectively suppresses soil-borne fungal diseases in vegetables. A green fluorescence protein (GFP) was expressed in B96-II to detect migration of B96-II into the root and stem of asparagus.

[Determination of 4 dithiocarbamate residues in 22 matrices by gas chromatography].

A gas chromatographic method with flame photometric detection (FPD (sulfur filter)) for analyzing the residues of 4 dithiocarbamates in 22 matrices in a heated closed vial has been established. The dithiocarbamate residues were decomposed to carbon disulfide (CS2) by SnCl2-HCl solution. The liberated CS2 was absorbed by hexane in the vial, and then determined by gas chromatography with FPD (sulfur filter).

[Effects of sub-lethal dosages abamectin on food intake and digestive enzyme activities of silkworm Bombyx mori L].

Mulberry leaves treated with sub-lethal dosages (LC5, LC10 and LC20) abameetin were fed to the 5th instar larvae of silkworm (Bombyx mori L.), and the food intake and digestive enzyme activities of the larvae were studied by using gravimetric method and measuring enzyme activities. The results showed that sub-lethal dosages abameetin significantly inhibited the growth and food intake of the larvae, with their body mass and its increase rate as well as their relative growth rate being significantly lower than the control, and accompanied with the decreases of food intake, its relative consumption rate, and feces amount.

[Biodegradation of acetochlor in soil and its persistence against Echinochloa crusgalli].

Gas chromatograph and bioassay were used to study biodegradation of acetochlor and its influence on the persistence against Echinochloa crusgalli in soil. The results showed that half-life of degradation of acetochlor was significantly shorter in unsterilized soil than that in sterilized soil under the same experimental conditions of concentrations, water content and temperature, when acetochlor was added to the soil with concentrations of 1.25, 2.