Eco-friendly management of late blight of potato– A review

Abstract

Late blight of potato caused by fungus Phytophthora infestans responsible for Irish famine in the year 1845, is one of the most dramatic episode caused by plant pathogen in human history. One million people died due to famine in Ireland. So eco-friendly management of potato late blight disease is a necessary goal to be accomplished. During last many years, management strategies solely relied upon the application of fungicides due to rapid development of late blight epidemics. However, indiscriminate use of fungicide posesses a serious threat to the environment and human health. It is also responsible for built up of resistance in the pathogen and have adverse effect on beneficial organisms such as nitrogen fixers, resident antagonism and mycorrhizal fungi. So to minimize the fungicide use, eco-friendly means for late blight management are required on a priority basis. In recent years, significant changes in isolates of late blight fungus have been recorded including changes in aggressiveness to the crop also. Since, late blight is a community disease so, effective eco-friendly management must be adopted by the all producers, farmers, gardeners and growers with the help of government agencies, extension specialist and crop consultants etc. The strategy to control late blight is the prevention of establishment of Phytophthora infestans in potato crop. In this context, disease management by cultural practices is the first line of defense while forecasting system, physiological strategies, biological control, host plant resistance and bio-technological approach are essential for efficient, effective and eco-friendly management of late blight of potato.

Determining the effect of treatment with antimicrobial substances before storage on the preservation of lemons

“…This contributes to the reduction of losses due to water evaporation, respiration and reduces damage to fruits by microorganisms, i. e., increases the yield of marketable products, increases their shelf life. In contrast to [28], in which the use of Trichodermin was proposed against the causative agents of verticillosis, celery, eggplant; fusarium wilt of watermelons, rhizoctoniosis of potatoes, as well as for the destruction of damage by various types of rot, [29] it is proposed to use yeast. Antagonistic yeasts as safe and effective alternatives for disease treatment.…”

Preservation of winter garlic depending on the elements of postharvest treatment

“…This makes it possible to get high-quality planting material and is economically profitable [19,26]. Treatment with 1 % Trichodermine solution reduces the development of fungal and bacterial rot by 1.6 times compared with untreated variants [27,28].…”