Fungicides continue to be essential for the effective control of plant diseases. The azoles class of fungicides has been the leading agents for the control of fungal pathogens of plants since their introduction in the mid 1970s. This class of fungicides is also called sterol demethylation inhibitors (DMIs) because they inhibit the formation of cytochrome P450 sterol 14 alpha-demethylase (450 14...

The ability of Bacillus subtilis, strain ALICA to produce three mycolytic enzymes (chitinase, β-1,3-glucanase, and protease), was carried out by the chemical standard methods. Bacillus subtilis ALICA was screened based on their antifungal activity in dual plate assay and cell-free culture filtrate (25%) against five different phytopathogenic fungi Alternaria alternata, Macrophomina sp., Colleto...

Nigerian cocoa farmers mostly use copper-based fungicides to control black pod disease of Theobroma cacao. Heavy metals are potentially toxic to soil microbes and soil environment in general. Toxicity depends on chemical association in soil. For this reason, determining the chemical forms of metals in soils is important to evaluate their mobility and bioavailability. Sequential extraction was u...

In many parts of the world, Cercospora beticola is the most important leaf spot disease of sugar beets. The frequent risk of losses caused by this pathogen demands the application of fungicides in many regions of sugar beet growing. However, the damage potential is variable to a big extent, dependent on year, site and cropping measures. Therefore, we developed an IPM-System, which is reacting f...

In this study, antifungal activity of essential oils of Cymbopogon citratus and Ocimum basilicum and two fungicides Mancozeb and Metalaxyl-Mancozeb in six different concentrations were investigated for controlling three species of Phytophthora, including P. capsici, P. drechsleri and P. melonis on pepper, cucumber and melon under in vitro and greenhouse conditions, respectively. Under the in vi...

Abstract Bark on trees protects the plant against environmentally adverse conditions as well fungi and insect attacks. There are different chemical substances, mostly in outer bark of trees, which can stop from developing. a by-product wood plantations is available high quantity serve an excellent source for production eco-fungicides. In presented article, various poplar clones two short-rotati...

Greenhouse studies were conducted to evaluate the dissipation rate kinetics and estimate the behavior of selected pesticides after washing, peeling, simmering, and canning of tomato expressed as processing factor (PF). Two varieties (Marissa and Harzfeuer) were treated by six fungicides: azoxystrobin, boscalid, chlorothalonil, cyprodinil, fludioxonil, and pyraclostrobin at single and double dos...

Natural plant extracts / products have the potential as safe alternatives for chemical fungicides in plant disease management. Methanol and pure methanol: water (50:50 v/v) extracts of peppermint, lavandula, eucalyptus, datura and nettle were screened for their antifungal activity against Alternaria sesami, the causal agent of Alternaria leaf spot of sesame at 5, 10 and 15% concentrations in Sh...

Microorganisms are used for the prevention, treatment of infectious diseases plants and increasing yields. Products based on a culture microorganisms mankind use as an alternative to chemical pesticides fungicides. In this work we consider Streptomyces agents biocontrol plant growth stimulator well induced by their mechanisms, metabolic pathways. We experimentally proved antifungal, antibacteri...

To provide an assessment of the occurrence of fungicides in water resources, the US Geological Survey used a newly developed analytical method to measure 33 fungicides and an additional 57 current-use pesticides in water samples from streams, ponds, and shallow groundwater in areas of intense fungicide use within three geographic areas across the United States. Sampling sites were selected near...