Six species of insects and a rust fungus have been successfully established for biocontrol of the weed Parthenium hysterophorus L. in Queensland, Australia. Effectiveness of biocontrol insects was evaluated at two properties in Queensland during 1996-97 based on an exclusion experiment using insecticides. Parthenium-infested plots with and without biocontrol insects were sampled at monthly inte...

Several Trichoderma virens (syn. Gliocladium virens) strains have good biocontrol activity against Rhizoctonia solani on cotton but lack some of the commercially desirable characteristics found in other Trichoderma species. In an attempt to combine these desirable characteristics, we used a highly effective biocontrol strain of T. virens in protoplast fusions with a strain of T. koningii, which...

We investigated the biocontrol activity of A. pullulans Dmg 30 DEP against Alternaria solani causal agent early blight. Biocontrol was tested by in vivo and ad planta. were investigating antibiosis capabilities with dual culture method, paper dish assay, two-compartment petri trapping identification volatile organic compounds (VOCs) GC-MS. Lysis examined observing clear zone formed growing yeas...

constant use of chemical fungicides has faced to increasing public concern regarding contamination of perishables with fungicidal residues, and proliferation of resistance in the pathogen populations. so recent researches in this area has focused on the development and evaluation of alternative control strategies to reduce dependency on synthetic fungicides. accordingly, in this research in vit...

Several mycoparasitic strains belonging to the filamentous fungal genus Trichoderma are promising candidates for the biological control of plant pathogenic fungi. When planning the application of antagonistic Trichoderma strains for the purposes of biological control, it is very important to consider the environmental parameters affecting the biocontrol agents in the soil. A series of abiotic a...

Fusarium oxysporum f.sp.radicis-licopersici (Forl) is a soilborne pathogenic fungus which can cause tomato foot and root rot (TFRR). Tomato root exudate is a good source of nutrients for both Forl and the TFRR-suppressing biocontrol bacterium Pseudomonas fluorescens strain WCS365. Incubation of Forl microconidia in tomato root exudate stimulates their germination. This phenomenon is observed, t...

Three damaging soybean diseases, Sclerotinia stem rot caused by a fungus sclerotiorum (Lid.) de Bary, Phytophthora root sojae, and cyst nematode (Heterodera glycines Ichinohe), are destructive to growth yield cause huge economic losses. Biocontrol is an effective way control diseases with the advantage of being environmentally friendly sustainable. To date, few reviews have reported these three...

1. Where biocontrol programmes for invasive plants are in place, only one-third are fully successful. Integrated weed management (IWM) emphasizes the use of several complementary control measures. 2. We used models of increasing complexity to determine which parameters affect site occupancy of an invasive shrub, Mimosa pigra , in tropical Australia. Two introduced biocontrol agents have spatial...