The repellency and fumigant activity of Artemisia vulgars essential oil to Musca domestica vicina.;

The contact,repellent and fumigant activity of supercritical fluid CO2 extract from Acorus calamus against the main stored-grain insects,such as Sitophilus zeamais,Rhizopertha dominica,Tribolium castaneum,Tribolium confusum,Cryptolestes pusillus and Oryzaephilus surinamensis were studied in this paper.

In a further research of the effect of fumigation duration and temperature on the fumigation activity of red and green prickly ash essential oils, LC_(50)s decreased with increasing treatment duration and the correc.

Within 24 h of treatment,EtF showed a fairly high fumigation activity.

The fumigation activities of ethyl formate (EtF) against S.

The fumigant toxicity of β-asarone extracted from Acorus calamus against the adults and immature stages of Sitophilus zeamais Motschulsky were studied.

And it described the research progress of stress wave technique inwood and standing tree at home and abroad.

Theoretical evidence that impact stress wave can travel in standing trees and the research development of using the wave for the detection of mechanical properties of standing trees are stated.

This paper introduces the current research and development on elastic wave tomography technique for detecting internal defects in standing trees.