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27:7

Agronomic Crop Insect Scouting

May 10, 2019cmanneri

David Owens, Extension Entomologist; owensd@udel.edu Watch out for seedcorn maggot this week and next if you are working a cover crop in. Seedcorn maggot peak second generation activity is predicted. This does not mean that flies can’t affect a stand… Continue Reading →

Agronomic Crops 27:7, agronomic crop insect scouting

Fruit Drop in Tree Fruits

May 10, 2019cmanneri

Gordon Johnson, Extension Vegetable & Fruit Specialist; gcjohn@udel.edu Fruit trees commonly set more fruit than they will carry and chemical, mechanical, or hand thinning is done to reduce fruit loads, increase fruit size, and limit alternate year bearing. Natural fruit… Continue Reading →

Fruit Crops 27:7

Seed Maggot Problems in Some Fields

May 10, 2019cmanneri

Jerry Brust, IPM Vegetable Specialist, University of Maryland; jbrust@umd.edu This spring has been pretty good for pests of early planted seeds and bulbs—the seed corn maggot Delia platura (SCM) and other seed maggots such as Cabbage maggot Delia radicum (it… Continue Reading →

Vegetable Crops 27:7, seed corn maggot

2019 Seedling Diseases of Watermelon and Melon on Transplants

May 10, 2019cmanneri

Kate Everts, Vegetable Pathologist, University of Maryland; keverts@umd.edu There has been a report of a bacterial seedling disease on muskmelon ready for transplant this week. The sample in question turned out to be angular leaf spot (ALS) caused by Pseudomonas… Continue Reading →

Vegetable Crops 27:7, watermelon

Magnesium Deficiencies in Vegetables Revisited

May 10, 2019cmanneri

Gordon Johnson, Extension Vegetable & Fruit Specialist; gcjohn@udel.edu We have seen several cases of magnesium deficiency in vegetables already in 2019. Magnesium (Mg) is considered a secondary macro-element and is essential for plant growth. It is a component of chlorophyll,… Continue Reading →

Vegetable Crops 27:7, magnesium, nutrient deficiency, vegetable crop nutrients

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