Dear all. It is known, that climate change and also extreme weather can cause outbreak of some pests and their enemies also. Other pests may be diminshed. The question is: How extreme weather events like heat, drought, storm, heavy down poors, hail, flooding will influence the special diseases of meadow fescue and the special plant protection measures (chemical and biological) in meadow fescue. We found nothing in literature but need more information for risk assessment. Under current climate conditions plant diseases and pests, (mammalians, weeds, insect pests, nematodes and plant pathogens like fungi, viruses, bacteria) can cause considerably yield losses and damages of crops. Climate change will likely lead to increase the frequency, intensity, spatial extent, duration and timing of weather and climate extremes. Does anyone have any information about the impacts of extreme weather events on diseases and pests of meadow fescue? We reviewed the possible impacts of weather extremes on pests (weeds, insect pests and plant pathogens) of meadow fescue by analyzing scientific literature published since 1945, concerning the knowledge about the influences of extreme weather on incidence of these pests.
http://www.nrcresearchpress.com/doi/full/10.1139/cjps-2015-0259#.W6EENdj7QUs
is this useful
Dear Seidal,
As you know from your searches, a limited amount of information on the potential impacts of climate change on plant harmful organisms is available. It is known that extreme changes of climate affect plants in natural and agroecological conditions throughout the world. These changes directly impact plants and their interactions with harmful organisms. In addition, there is clear evidence that climate change is altering the distribution of plant harmful organisms, but the full effects are difficult to predict and need to be assessed on a case by case basis. From my point of view, extreme climate changes will affect pests, yield and quality of meadow fescue. The prediction is that extraordinary weather conditions may alter rates of pest development, affect host resistance and lead to changes in the physiology of host - pest interactions of meadow fescue. However, can’t say that how much this conversion will realize. It needs to be studied.
Good luck
Thank you for your answer, dear Birol Akbaş. Your thoughts are correct. There is now also a general consensus in research that extreme changes of climate affect plants in natural and agroecological conditions throughout the world. These changes directly impact plants and their interactions with harmful organisms and that climate change is altering the distribution of plant harmful organisms. But for valid predictions, we urgently need specific data: how does a specific value of a certain extreme weather event influence the occurrence and development of a concrete pest or disease and how will influence the damage caused by it? It seems, unfortunately these concrete data doesn’t exist. We need it urgently. Best regards, Petra
@Rekha Arya
Thank you Rekha, I have read the article you recommended meanwhile. It contained a hint concerning meadow fescue (Festuca pratensis) and frost: “F. pratensis cultivars survived well during (Norwegian) winters, which can be explained by these cultivars being highly adapted to harsh winter conditions.”…“This may indicate that cold acclimation exerts a major influence on the expression of snow mould resistance” .The paper also contains concrete weather data and resistance to M. nivale data. I think we can include him in our inquiries.
- Badges
- Science topic
- Similar topics
- Agricultural Science
- Horticulture