• Latest
  • Trending
Phytophthora rot in asparagus – be aware and prepare

Phytophthora rot in asparagus – be aware and prepare

October 7, 2021
KFU Scientists Develop Smart Algorithm for Autonomous Tractors to Reduce Soil Compaction and Boost Efficiency

KFU Scientists Develop Smart Algorithm for Autonomous Tractors to Reduce Soil Compaction and Boost Efficiency

July 5, 2025
How Gen Z Farmers in China Are Revolutionizing Agriculture with Smart Farming Tech

How Gen Z Farmers in China Are Revolutionizing Agriculture with Smart Farming Tech

July 4, 2025
Border Alert: Contaminated Onion Shipment from Kazakhstan Blocked in Saratov – What Farmers Need to Know

Border Alert: Contaminated Onion Shipment from Kazakhstan Blocked in Saratov – What Farmers Need to Know

July 4, 2025
Onion and Cabbage Prices Surge by 57–87%: Drought, Low Yields, and the Future of Vegetable Supply

Onion and Cabbage Prices Surge by 57–87%: Drought, Low Yields, and the Future of Vegetable Supply

July 3, 2025
The Decline of Bessonovsky Onion: Why a Once-Famous Russian Variety Disappeared from Fields

The Decline of Bessonovsky Onion: Why a Once-Famous Russian Variety Disappeared from Fields

July 3, 2025
Peruvian Asparagus Expands in Europe Despite Price Pressure: Strategies for Sustainable Growth

Peruvian Asparagus Expands in Europe Despite Price Pressure: Strategies for Sustainable Growth

July 2, 2025
Peru’s Agricultural Exports on Track to Hit Record $15 Billion by 2025 – What’s Driving the Boom?

Peru’s Agricultural Exports on Track to Hit Record $15 Billion by 2025 – What’s Driving the Boom?

July 2, 2025
Breaking Boundaries: How Belgorod State University is Pioneering Climate-Resistant Viticulture

Breaking Boundaries: How Belgorod State University is Pioneering Climate-Resistant Viticulture

July 1, 2025
Smart Garden” in the Arctic: How a Yakutian School is Pioneering Year-Round Farming in Extreme Conditions

Smart Garden” in the Arctic: How a Yakutian School is Pioneering Year-Round Farming in Extreme Conditions

July 1, 2025
EU Tariffs on Russian and Belarusian Fertilizers: A Threat to European Agriculture?

EU Tariffs on Russian and Belarusian Fertilizers: A Threat to European Agriculture?

June 30, 2025
Novgorod Farmers Overcome Extreme Weather to Exceed Spring Sowing Targets by 6%

Novgorod Farmers Overcome Extreme Weather to Exceed Spring Sowing Targets by 6%

June 30, 2025
Unlocking the Potential of Apple Value Addition: How Mari El Farmers Are Pioneering Sustainable Agri-Business

Unlocking the Potential of Apple Value Addition: How Mari El Farmers Are Pioneering Sustainable Agri-Business

June 29, 2025
  • Company
Saturday, July 5, 2025
Vegetables News
  • NEWS
    KFU Scientists Develop Smart Algorithm for Autonomous Tractors to Reduce Soil Compaction and Boost Efficiency

    KFU Scientists Develop Smart Algorithm for Autonomous Tractors to Reduce Soil Compaction and Boost Efficiency

    How Gen Z Farmers in China Are Revolutionizing Agriculture with Smart Farming Tech

    How Gen Z Farmers in China Are Revolutionizing Agriculture with Smart Farming Tech

    Border Alert: Contaminated Onion Shipment from Kazakhstan Blocked in Saratov – What Farmers Need to Know

    Border Alert: Contaminated Onion Shipment from Kazakhstan Blocked in Saratov – What Farmers Need to Know

    Onion and Cabbage Prices Surge by 57–87%: Drought, Low Yields, and the Future of Vegetable Supply

    Onion and Cabbage Prices Surge by 57–87%: Drought, Low Yields, and the Future of Vegetable Supply

    The Decline of Bessonovsky Onion: Why a Once-Famous Russian Variety Disappeared from Fields

    The Decline of Bessonovsky Onion: Why a Once-Famous Russian Variety Disappeared from Fields

    Peruvian Asparagus Expands in Europe Despite Price Pressure: Strategies for Sustainable Growth

    Peruvian Asparagus Expands in Europe Despite Price Pressure: Strategies for Sustainable Growth

    Peru’s Agricultural Exports on Track to Hit Record $15 Billion by 2025 – What’s Driving the Boom?

    Peru’s Agricultural Exports on Track to Hit Record $15 Billion by 2025 – What’s Driving the Boom?

    Breaking Boundaries: How Belgorod State University is Pioneering Climate-Resistant Viticulture

    Breaking Boundaries: How Belgorod State University is Pioneering Climate-Resistant Viticulture

    Smart Garden” in the Arctic: How a Yakutian School is Pioneering Year-Round Farming in Extreme Conditions

    Smart Garden” in the Arctic: How a Yakutian School is Pioneering Year-Round Farming in Extreme Conditions

  • AGROTECHNOLOGY
    • All
    • Climate
    • Crop protection
    • digital (smart)
    • dron
    • Fertilizer
    • Research
    • weed
    KFU Scientists Develop Smart Algorithm for Autonomous Tractors to Reduce Soil Compaction and Boost Efficiency

    KFU Scientists Develop Smart Algorithm for Autonomous Tractors to Reduce Soil Compaction and Boost Efficiency

    Smart Garden” in the Arctic: How a Yakutian School is Pioneering Year-Round Farming in Extreme Conditions

    Smart Garden” in the Arctic: How a Yakutian School is Pioneering Year-Round Farming in Extreme Conditions

    EU Tariffs on Russian and Belarusian Fertilizers: A Threat to European Agriculture?

    EU Tariffs on Russian and Belarusian Fertilizers: A Threat to European Agriculture?

    Novgorod Farmers Overcome Extreme Weather to Exceed Spring Sowing Targets by 6%

    Novgorod Farmers Overcome Extreme Weather to Exceed Spring Sowing Targets by 6%

    Agricultural Drones in Leningrad Region: High Costs and Legal Barriers Slow Adoption Despite Benefits

    Agricultural Drones in Leningrad Region: High Costs and Legal Barriers Slow Adoption Despite Benefits

    Agricultural Insurance on the Rise: How Climate Risks Are Reshaping Farming in Russia and Tatarstan

    Agricultural Insurance on the Rise: How Climate Risks Are Reshaping Farming in Russia and Tatarstan

    Digital Twins in Agriculture: How Virtual Farm Modeling Boosts Efficiency and Sustainability

    Digital Twins in Agriculture: How Virtual Farm Modeling Boosts Efficiency and Sustainability

    Innovative Cherry Farming in Vorarlberg: High Yields, Smart Techniques, and Sustainable Practices

    Innovative Cherry Farming in Vorarlberg: High Yields, Smart Techniques, and Sustainable Practices

    Unseasonal Rains Wreak Havoc on Gujarat’s Onion Crop: Price Surge and Farmer Distress Loom

    Unseasonal Rains Wreak Havoc on Gujarat’s Onion Crop: Price Surge and Farmer Distress Loom

  • IRRIGATION
  • SEED PRODUCTION
    • Vegetables
    • Fruit
  • PROCESSING
No Result
View All Result
  • NEWS
    KFU Scientists Develop Smart Algorithm for Autonomous Tractors to Reduce Soil Compaction and Boost Efficiency

    KFU Scientists Develop Smart Algorithm for Autonomous Tractors to Reduce Soil Compaction and Boost Efficiency

    How Gen Z Farmers in China Are Revolutionizing Agriculture with Smart Farming Tech

    How Gen Z Farmers in China Are Revolutionizing Agriculture with Smart Farming Tech

    Border Alert: Contaminated Onion Shipment from Kazakhstan Blocked in Saratov – What Farmers Need to Know

    Border Alert: Contaminated Onion Shipment from Kazakhstan Blocked in Saratov – What Farmers Need to Know

    Onion and Cabbage Prices Surge by 57–87%: Drought, Low Yields, and the Future of Vegetable Supply

    Onion and Cabbage Prices Surge by 57–87%: Drought, Low Yields, and the Future of Vegetable Supply

    The Decline of Bessonovsky Onion: Why a Once-Famous Russian Variety Disappeared from Fields

    The Decline of Bessonovsky Onion: Why a Once-Famous Russian Variety Disappeared from Fields

    Peruvian Asparagus Expands in Europe Despite Price Pressure: Strategies for Sustainable Growth

    Peruvian Asparagus Expands in Europe Despite Price Pressure: Strategies for Sustainable Growth

    Peru’s Agricultural Exports on Track to Hit Record $15 Billion by 2025 – What’s Driving the Boom?

    Peru’s Agricultural Exports on Track to Hit Record $15 Billion by 2025 – What’s Driving the Boom?

    Breaking Boundaries: How Belgorod State University is Pioneering Climate-Resistant Viticulture

    Breaking Boundaries: How Belgorod State University is Pioneering Climate-Resistant Viticulture

    Smart Garden” in the Arctic: How a Yakutian School is Pioneering Year-Round Farming in Extreme Conditions

    Smart Garden” in the Arctic: How a Yakutian School is Pioneering Year-Round Farming in Extreme Conditions

  • AGROTECHNOLOGY
    • All
    • Climate
    • Crop protection
    • digital (smart)
    • dron
    • Fertilizer
    • Research
    • weed
    KFU Scientists Develop Smart Algorithm for Autonomous Tractors to Reduce Soil Compaction and Boost Efficiency

    KFU Scientists Develop Smart Algorithm for Autonomous Tractors to Reduce Soil Compaction and Boost Efficiency

    Smart Garden” in the Arctic: How a Yakutian School is Pioneering Year-Round Farming in Extreme Conditions

    Smart Garden” in the Arctic: How a Yakutian School is Pioneering Year-Round Farming in Extreme Conditions

    EU Tariffs on Russian and Belarusian Fertilizers: A Threat to European Agriculture?

    EU Tariffs on Russian and Belarusian Fertilizers: A Threat to European Agriculture?

    Novgorod Farmers Overcome Extreme Weather to Exceed Spring Sowing Targets by 6%

    Novgorod Farmers Overcome Extreme Weather to Exceed Spring Sowing Targets by 6%

    Agricultural Drones in Leningrad Region: High Costs and Legal Barriers Slow Adoption Despite Benefits

    Agricultural Drones in Leningrad Region: High Costs and Legal Barriers Slow Adoption Despite Benefits

    Agricultural Insurance on the Rise: How Climate Risks Are Reshaping Farming in Russia and Tatarstan

    Agricultural Insurance on the Rise: How Climate Risks Are Reshaping Farming in Russia and Tatarstan

    Digital Twins in Agriculture: How Virtual Farm Modeling Boosts Efficiency and Sustainability

    Digital Twins in Agriculture: How Virtual Farm Modeling Boosts Efficiency and Sustainability

    Innovative Cherry Farming in Vorarlberg: High Yields, Smart Techniques, and Sustainable Practices

    Innovative Cherry Farming in Vorarlberg: High Yields, Smart Techniques, and Sustainable Practices

    Unseasonal Rains Wreak Havoc on Gujarat’s Onion Crop: Price Surge and Farmer Distress Loom

    Unseasonal Rains Wreak Havoc on Gujarat’s Onion Crop: Price Surge and Farmer Distress Loom

  • IRRIGATION
  • SEED PRODUCTION
    • Vegetables
    • Fruit
  • PROCESSING
No Result
View All Result
Vegetables News
Home AGROTECHNOLOGY

Phytophthora rot in asparagus – be aware and prepare

by Viktor Kovalev
October 7, 2021
in AGROTECHNOLOGY
0
Phytophthora rot in asparagus – be aware and prepare
With the UK asparagus season fast approaching, Kim Parker explains how visible symptoms of phytophthora rot are the ‘tip of the iceberg’ and summarises strategies for prevention and control.

For some asparagus growers, phytophthora rot is a familiar ‘foe.’ Other growers first encountered this devastating disease in 2020, following a mild wet autumn and saturated soils in February.

What are the symptoms of phytophthora rot in asparagus?

The most obvious symptoms of asparagus phytophthora at harvest are lesions at the spear base. These result in spear twisting or a characteristic ‘crooked’ appearance, followed by collapse or shrivelling. Often, however, the only indication of a problem is fewer spears emerging, thin spears, or increasingly poor plant stands.

The progress of phytophthora becomes more obvious once you dig down to the roots and crown. Infected roots first appear water-soaked, then later brown and rotted. Infected crowns have softened internal tissues.

Damage provides entry points for other pathogens such as Fusarium species. As a result, there can be a long-term damaging effect on spear and fern production and yields in the following seasons.Back to: Integrated pest management (IPM)

How does the phytophthora rot pathogen survive?

The pathogen can survive in crowns for planting and as long-lived ‘oospores’ in the soil. Swimming spores are released from pathogen structures in crown tissue and oospores in soil, leading to infection of roots and emerging spears.

The optimum temperatures for infection are 10–12oC. Severe attacks are associated with wet conditions and poor drainage.

How do I manage phytophthora rot in asparagus crops?

Prevent

Phytophthora is difficult to eliminate once it is present in a field, so prevention is the best strategy:

  • Avoid new plantings where there is a history of root rot on a previous crop

This can indicate that soil conditions may be conducive for development of phytophthora rots.

  • Ensure that soil is well-drained and not prone to waterlogging

If there is poor drainage in a mature crop, take action to remedy the problem.

  • Check with crown suppliers that propagation areas are free from phytophthora rots

Note that there is currently no diagnostic test used commercially to check for phytophthora in crowns.

  • Crown planting should be done under dry, warm conditions

This should minimise the risk of phytophthora infection.

  • Consider zero tillage

Cultivation practices such as annual ridging and sub-soiling can cause root damage and entry points for infection by the pathogen. Results from our research have led to new thinking on the potential benefits of zero tillage.Understanding asparagus root growth patterns: watch the video & read the factsheet


Control

SL 567A (metalaxyl-M) is the only fungicide currently approved for phytophthora rot management on asparagus and has to be applied before spears emerge.

SL 567A is most effective when applied to moist soils and then ‘washed’ into the soil with an advancing front of water from rain. The product should not be applied to saturated soils as it can be easily removed by surface drainage.

As the industry relies on a single active substance, metalaxyl-M, we are concerned about the risk of resistance. There is also the possibility of reduced efficacy because of microbial degradation in the soil. We are, therefore, working with industry to explore other fungicide options.An indepth look at phytophthora rot in asparagus – symptoms & management optionsCrop Walkers’ Guide: Asparagus – identify key pests & diseasesSustainable control methods for asparagus beetleSCEPTREplus trial results for asparagus crops

Kim Parker has worked in UK horticulture since 2000. She has been a Crop Protection Scientist (Diseases) at AHDB for over four years, focusing on field vegetables and protected edibles and previously worked as a plant pathologist for ADAS

Tags: asparagusPhytophthora
Previous Post

Funds for ‘climate smart’ farming added to California budget

Next Post

Agritechnica 2022: The world’s leading trade fair for agricultural machinery with an attractive exhibitor offering and technical program

Next Post
Agritechnica 2022: The world’s leading trade fair for agricultural machinery with an attractive exhibitor offering and technical program

Agritechnica 2022: The world's leading trade fair for agricultural machinery with an attractive exhibitor offering and technical program

Leave a Reply

Your email address will not be published. Required fields are marked *

  • Home
  • Privacy Policy
  • Privacy Policy of vegetables.news app

© 2020-2024 VEGETABLES NEWS

No Result
View All Result
  • NEWS
  • AGROTECHNOLOGY
  • IRRIGATION
  • SEED PRODUCTION
    • Vegetables
    • Fruit
  • PROCESSING

© 2020-2024 VEGETABLES NEWS