the effect of fungicides on silkworm larvae was analyzed with regard to the fact that these beneficial insects are usually affected by fungicides, daily feeding on 1 and 2g/liter of carbendazim, a systemic fungicide, did not have significant effects on larval and pupal mortality. however the weight of the treated larvae showed considerable weight decrease up to 37% weight.. all the economic tra...

Slush pine was grown in central Louisiana unrler,f?)ur levels c!f'culture with or without repeatc~d spmyings of the .sy.vten~ic ,fungicide triadimefhn , f i r protection against ,fusifi)rm rust. The eight treatment cornbinations were: ( I ) no,fungicide, weed control, or,fertilizer; ( 2 ) weeded; ( 3 ) weeded, applied irzorganic ,firtilizer, and bedded b<fi)replcrrlting; ( 4 ) weeded, bedded, a...

Hollomon D.W. (2015): Fungicide resistance: facing the challenge. Plant Protect. Sci., 51: 170–176 Fungicide resistance continues to generate disease control problems in many crops. Experience amassed over the past fifty years has emphasised the importance of diversity in modes of action in anti-resistance strategies. Because of losses, not only from resistance, but increasingly from environmen...

In one of the few studies of its kind, Cornell researchers Eric Nelson and Cheryl Craft (Dept. Plant Pathology, College of Agriculture and Life Sciences) report the successful suppression of dollar spot in both preventative and curative applications by a biological control agent, the bacteria Enterobacter cloacae, in field experiments on putting greens in New York. While laboratory and greenhou...

Fungicide efficacy at different positions on grape shoots was determined on vinelets inoculated with Botrytis cinerea. To ensure proper fungicide coverage, vinelets (table grape cultivar Dauphine, wine grape cultivar Merlot noir), prepared from cuttings, were sprayed in a spray chamber at the recommended dosages with iprodione, pyrimethanil, cyprodinillfludioxonil and fenhexamid. Vinelets for t...

Amine fungicides are widely used as crop protectants. Their success is believed to be related to their ability to inhibit postlanosterol sterol biosynthesis in fungi, in particular sterol-Δ(8),Δ(7)-isomerases and sterol-Δ(14)-reductases, with a concomitant accumulation of toxic abnormal sterols. However, their actual cellular effects and mechanisms of death induction are still poorly understood...

This study investigated the effects of soil amendment with olive mill by-products (Jift) on growthof chickpea and their symbiosis with Vesicular arbascular (VA) fungi. A split plot design with threereplications was used, in which soil treatments (methyl bromide fumigated, fungicide, and untreatedcontrol) were assigned to main plots and soil-Jift mixtures(Jift: Soil; 0:10, 1:9, 2:8, 3:7, and 4:6...

Survival of seeds in the seed bank is important for the population dynamics of many plant species, yet the environmental factors that control seed survival at a landscape level remain poorly understood. These factors may include soil moisture, vegetation cover, soil type, and soil pathogens. Because many soil fungi respond to moisture and host species, fungi may mediate environmental drivers of...

Dollar spot is one of the most common diseases of golf course turfgrass and numerous fungicide applications are often required to provide adequate control. Weather-based disease warning systems have been developed to more accurately time fungicide applications; however, they tend to be ineffective and are not currently in widespread use. The primary objective of this research was to develop a n...