Horticulture and Disease Topics

Horticulture provides healthy foods, aesthetic landscapes, improved air, water and green space, and Maryland’s livability. These goals are accomplished by: 1) conducting research in managed horticultural systems 2) collaborating with industry leaders, agencies, and stakeholders to improve production efficiencies, environments, livelihoods and human well-being, and 3) delivering statewide education programs through improved communication, research, and teaching techniques.

Vegetable production is changing rapidly worldwide. Major factors driving change are globalization, environmental protection, and urbanization. Globalization introduces new models of business and competition requiring global perspectives and innovation to maintain viable markets. Environmental issues demand research and implementation of production practices to achieve healthy neighborhoods and farm systems. Consumers are increasing their demand for a safe, secure, affordable local food system. Maryland’s vegetable growers have considerable opportunities to adjust rather than remain threatened with globalization and urbanization.

2022 Articles 

Bruising on Strawberry Leaves

Edema Problem in High Tunnel Tomatoes


Articles from Previous Years

Air Pollution and its Effect on Vegetables

Basil Downy Mildew Cultivar Study

Be Alert for Late Blight Showing Up on Tomatoes

Black Dot Root Rot - Seldom Seen Tomato Disease Found In High Tunnel 

Blossom End Rot in Tomatoes

Broad Mites Found in Maryland Caneberries

‘Bruising’ on Strawberry Foliage

Catfacing Problems in Tomatoes

Celery Leaf Curl Found in Several Fields in the Mid-Atlantic

Club Root Found in Brassica Crops

Cold Damage to High Tunnel and Greenhouse Vegetables

Cold Damage to Strawberry Flowers

Corky Root Disease in Tomatoes

Does it Pay to Graft Tomatoes for Increased Yields

Dry Plugs / Causing Problems in Some Strawberry Fields

Edema Problem in Greenhouse Tomatoes

Ethylene Problems in Vegetable High Tunnels

Expect Poor Fruit Set in Tomatoes this Week

Extreme Weather Events Could Compromise One of our Best Disease Management Tools in Vegetables

Frequent Rains = Lots of Vegetable Disease Problems

Fusarium Crown Rot in Squash

Fusarium Wilt in Basil

Good Time to Check for Root Knot Nematode in Vegetables

Grafting Heirloom Tomatoes for Increased Yields and Quality

Gummy Stem Blight in Cantaloupe

Helping Fruit Set in Tomatoes

High Soluble Salts in Some High Tunnels

Maintain Pumpkin Foliage

Manganese Toxicity in Cantaloupe

Nutrient Problems and Their Management in Tomatoes

Odd Cold Damage in Potato Field

Odd Damage to Greenhouse Watermelon Transplants

Oh Hail Yes

Old News But It Pays To Clean Up Your High Tunnel In The Off-Season

Organic Weed Control in No-Till Vegetable Systems

Ozone Damage to Cucurbit and Tomato Plants

Physiological Tomato Fruit Disorders

Plectosporium Blight in Some Pumpkin Fields this Year - 2021

Potassium and Other Factors Needed for High Quality Tomatoes

Problems with Pollination in High Tunnel Tomatoes

Rain Check Common in Tomato Fields this Season

Sanitation Important in Transplant Production Houses

Seeing Some ‘Unhappy’ Cucurbit Plants

Southern Bacterial Wilt of Tomato Found

Southern Blight Found Throughout Maryland this Season

Spotted Wilt Virus in Tomatoes

Sulfur Deficiency in Corn and Watermelon

Sulfur Deficiency in Sweet Corn (2011)

Sulfur Deficiency in Sweet Corn

Sunscald on Vegetable Leaves

Sunscald Very Prevalent in Peppers This Year

Tomato Pith Necrosi

Tomato Plastic Mulch and Shade Study 2012

Tomato Pollination and How to Increase it in High Tunnels (Presentation)

Tomato Problems

Tomato Ripening

Tomato Ripening Problems and Cucumber Beetles

Tomato Ripening Problems and the Role of Potassium

Unusual Foliar Blight Found in Southern Maryland Organic Tomatoes

Using Nitrate-N Petiole Sap -Testing for Better Nitrogen Management in Vegetable Crops

Using Silicon, Stimplex and Plant Resistance in Pumpkin Production Systems to Reduce Plant Disease Loss

Vegetable Fertility

Virus Problems Found in Garlic

White Rot of Onion and Garlic

Why So Little Yellow Shoulders in Tomatoes This Year? - 2016

Yellowing of Cantaloupe Leaf Edges