![]() ![]() ![]() This horsenettle makes a great spot for early blight to hang out over winter. After the first infection, it can also find safe harbor in nearby weeds or volunteer plants which can then infect your beautiful tomatoes. ![]() It hangs out in the ground over the winter, waiting for the right weather to attack. It’s kind of cute for a tomato destroying fungus.Įarly blight is a soil-born fungus, Alternaria solani. I’m sure you’ve already guessed by its name that early blight is the first of these on the scene each year. There are three different types of blight you need to keep an eye out for. So, we’re going to take a good hard look at them and discuss what they are, how to spot them (ha, pun intended) and most importantly, what to do if you find blight in your garden. Nothing spells the end of a tomato season faster than finding your plants infected with any of these blights. There’s nothing sadder than losing your harvest to tomato blight. (Ha! Who am I kidding? I’ll be lucky if I have any left in November.)Īnd to help you get more of those perfect tomato years, we’re going to tackle a word that strikes fear into every tomato gardeners’ heart – blight. And pint-sized jars of ratatouille stacked two high and four deep that you tell yourself you’re going to savor and make last to February this year. Fresh, spicy salsa is ready to be enjoyed all through the winter. You end up with jars of diced tomatoes and tomato juice lining your shelves. I’m sure you can relate.īut oh, when you get that perfect year where you’ve done everything right, that year where the pests congregated in someone else’s garden and mother nature blessed you with the perfect amount of rain and sun. Life would be so much easier if I were one of those people who didn’t like tomatoes. Why are my tomatoes still green it’s nearly September?Īnd yet, I don’t think I’ve ever had a garden without tomatoes.Lettuce? With a little care, you can say goodbye to grocery store lettuce forever. Potatoes? Not nearly as hard as I thought they would be. If there is one plant in my garden that gives me problems year after year, it’s tomatoes. Visit the Euroblight website for more details.They are, let’s not deny it. “The weather in 2019 was very dry and unfavourable for late blight development in some regions but very conducive for blight in other regions like Denmark and Northern Britain.”īesides the James Hutton Institute, organisations that have participated in the sampling and sponsored the project include Aarhus University, ACVNPT, ADAMA, AFBI, Agrifirm, Agricultural Institute of Slovenia, Agriphar, AHDB Potatoes, ARVALIS-Institut du Végétal, BASF SE, Bayer CropScience AG, Bayerische Landesanstalt für Landwirtschaft, Belchim Crop Protection, BSV Network (France), Centre Wallon de Recherches Agronomiques, Certis, Cheminova, Corteva CropSolutions, CUConsulting, CZAV, Delphi, Emsland Group, Estonian University of Life Sciences, Eurofins, Germicopa/ Florimond Deprez, Hochschule Osnabrück, HZPC Holland B.V., INRAE, Institute of Plant Protection and Environment in Serbia, Neiker, Nordisk Alkali, NIBIO, PCA, The Plant Breeding and Acclimatization Institute (IHAR), Profytodsd, Swedish University of Agricultural Sciences, Syngenta Agro GmbH, SynTech Research, Staphyt, TEAGASC, Technical University of Munich, and Wageningen University. infestans (37_A2, 36_A2 and 41_A2) increased their combined frequency from 10% in 2016 to 40% of the population in 2019. James Hutton Institute researcher Dr David Cooke, co-leader of the EuroBlight study, said: “Three emerging clones of P. ![]() The DNA fingerprint data was used to define the clonal lineages of the pathogen and combined with geolocation data to plot the diversity across Europe. Disease lesions were pressed on the cards and returned to the laboratories where the pathogen DNA was fingerprinted at the James Hutton Institute and INRA, Rennes. The report, which is available on the research group website, collates information from approximately 1800 samples collected and genotyped in 2019.Īs in previous years, ‘FTA cards’ were distributed to disease ‘scouts’ from across the industry who visited blight-infected crops. Plant pathologists from the EuroBlight consortium - which includes Aarhus University, Wageningen University and INRA - working with industry and research partners, have presented their latest report on its pathogen monitoring in potato crops. “The weather in 2019 was very dry and unfavourable for late blight development in some regions but very conducive for blight in other regions like Denmark and Northern Britain”Īn international consortium including the James Hutton Institute which tracks the European spatial distribution of Phytophthora infestans, the plant pathogen responsible for potato late blight, has updated the distribution of the pathogen by adding new data that visualises the distribution and diversity of dominant clones in the 2019 crop. ![]()
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