Evaluation of the insecticidal activity of Fusarium solani and Trichoderma harzianum against cockroaches; Periplaneta Americana

Abstract

Microbial control is one possible option to reduce cockroaches' populations. On searching for microbial control of cockroaches, a laboratory study was carried out to investigate the effect of spore suspension and metabolites of both fungi Trichoderma harzianum and Fusarium solani against cockroaches; Periplaneta americana. In this study we determined the pathogenicity of both spore suspension and metabolites of both fungi. Spore suspension was applied to the roaches either as a food additive or as a spray. Although both fungi have insecticidal effect on the cockroaches but F. solani fungi revealed higher mortality rate than T. harzianum. Both application techniques were effective but spraying showed relatively high mortality rate than incorporation of spores as a food additive. Comparing fungal metabolites with the fungal spores, fungal metabolites for both fungi were more effective than the fungal spores. Insecticidal effect of both agents and their metabolites were discussed.

Biohazards of the biofungicide, Trichoderma harzianum on the crayfish, Procambarus clarkii: Histological and biochemical implications

“…The survival rate decreased by increasing the concentration during exposure periods. These results in agreement with the results of Abdul-Wahid et al [21] who reported that reduction of cockroaches' (Periplaneta americana) population due to fungal treatment by T. harzianum was 100% at 24 h. Sakran [22] proved that Butachlor and fluazifop-p-butyl (herbicides) caused reduction in the survival rate of Biomphalaria alexandrina. Al-Assiuty et al [23], show that the abundance and species diversity of oribatid mites varies greatly by the effect of fungicides (T. harzianum and Pythium oligandrum) by their taxon and fungicide.…”

“…It was toxic to the shrimp (Palaemonetes pugio) when LC 50 was 52 mg/l [29]. Another cause of mortality can be attributed to the blockage of fungi spores to the gills of P. clarkii, as what happened to the cockroaches; Periplaneta americana by Abdul-Wahid et al [21].…”

The Effect ofBeauveria brongniartiiand its Secondary Metabolites on the Detoxification Enzymes of the Pine Caterpillar,Dendrolimus tabulaeformis

“…In contrast to the effects of fungal conidia (Lopes et al 2011; Sabry et al 2011; Khalid et al 2012; Nussenbaum et al 2012), researchers have paid more attention to the role of fungal secondary metabolites on host insects in recent years (Sokolova et al 1999; Xia et al 2000; Xia et al 2001; Zibaee et al 2009a; Zibaee et al 2011). Abdul-Wahid et al (2012) reported the pathogenicity of both a spore suspension and metabolite solution of two fungi, Trichoderma harzianum and Fusarium solani , against cockroaches ( Periplaneta americana ). Our study showed that B. brongniartii and its metabolites had toxic effects on the pine caterpillar D. tabulaeformis larvae, which is in agreement with previous studies.…”

Bioefficacy of Alpinia galanga (Zingiberaceae) Rhizome Extracts, (<I>E</I>)<I>-p</I>-Acetoxycinnamyl Alcohol, and (<I>E</I>)<I>-p</I>-Coumaryl Alcohol Ethyl Ether Against Bactrocera dorsalis (Diptera: Tephritidae) and the Impact on Detoxification Enzyme Activities

“…In contrast to the effects of fungal conidia (Lopes et al 2011;Sabry et al 2011;Khalid et al 2012;Nussenbaum et al 2012), researchers have paid more attention to the role of fungal secondary metabolites on host insects in recent years (Sokolova et al 1999;Xia et al 2000;Xia et al 2001;Zibaee et al 2009a;Zibaee et al 2011). Abdul-Wahid et al (2012) reported the pathogenicity of both a spore suspension and metabolite solution of two fungi, Trichoderma harzianum and Fusarium solani, against cockroaches (Periplaneta americana). Our study showed that B. brongniartii and its metabolites had toxic effects on the pine caterpillar D. tabulaeformis larvae, which is in agreement with previous studies.…”