disease attacks

Listing 11 - 20 from 143 for disease attacks

Ask Extension Database, NDSU Extension Service
... the disease attacks the lower stem, black lesions several inches long appear and the shoots then collapse. In severe cases, the disease may invade the entire crown of the plant. The disease is usually ... soil around diseased plants with fresh soil. Cover with sand or pebbles to prevent the disease from spreading from splashing rains. Both diseases are seldom serious except when spring weather is ...
www.ext.nodak.edu

Ask Extension Database, NDSU Extension Service
... grass. This is the serious stage of the disease. Sometimes it also attacks the root system, but this is less common in North Dakota. The disease attacks both bluegrass and fescues. Look for reddish, purplish or brown drying and shriveling leaf sheaths as evidence of the disease. Do not confuse it with ...
www.ext.nodak.edu More from this site

... to additional mortality due to insect and disease attacks. If death does not occur outright, then it may be due to secondary agents of plant disease. Those trees that weren't killed in ... compounded by flood. This tree should be considered a prime target for opportunistic insects and disease causing agents. These opportunists invade or infect only those hosts that are predisposed by stress ...
www.extension.umn.edu

VEGETABLES
... chapter. To review, here is a list of practices that reduce disease infection: Choose disease-resistant varieties. Use sterile seed-starting media. Space plants at recommended ... tomatoes, cucumbers and muskmelons often suffer from disease attacks that must be controlled by pesticides. These vegetables seldom need fungicides for disease control: asparagus, beans, beets, cabbage, cauliflower, carrots ...
www.hcs.ohio-state.edu

Cornell Fruit Resources, Cornell University
... and gooseberries to prevent the spread white pine blister rust (Cronartium ribicola). This fungal disease attacks both Ribes and white pines, which must live in close proximity for the ... tips in early spring. Some homeowners are experimenting with trellising gooseberries because it improves disease management and harvestability. Certain horticultural oils (check labels) applied at first sign of ...
www.hort.cornell.edu

Fruit Pathology - Disease Diagnostic Key
... juniperi-virginianae) 14b. Lesions only on leaves. (15) 15a. Found on McIntosh. Also attacks Hawthorn. HAWTHORN RUST (Gymnosporangium globosum) 15b. May develop on other varieties. CEDAR APPLE ... but mixed with some normal fruits. X-DISEASE. Disease Management Guides Fruit Tree Books Visual Gallery of Fruit Disease Images Index of Fruit Disease Photographs, Biology, Monitoring, and Management ...
www.caf.wvu.edu

campus plant disease map
... Both of the trees pictured below were removed in July 2000.) Dutch elm disease, caused by Ophiostoma ulmi (synonym: Ceratocystis ulmi), is one of ... symptoms. There are many different aspects of control for Dutch elm disease, all of which must be followed to assure success. Elms ... the use of insecticides to prevent bark beetle attacks. Go to PP 318 Dutch Elm Disease Profile Return to the top of the ...
www.cals.ncsu.edu

AD01 - ALFALFA DISEASE MANAGEMENT
... DISEASE MANAGEMENT Alfalfa Disease Management AD-001 Disease Information Note Jack Bailey, Extension Plant Pathology Specialist Lee Campbell, Research Plant Pathologist Disease Identification Control Field Monitoring Table 1: ... leafspot (Leptosphaerulina briosiana): This leaf spot primarily affects young leaves, but also attacks other above ground parts. Leaf symptoms vary with the plant's age ...
www.ces.ncsu.edu

OD14 - ORNAMENTAL DISEASE NOTE NO. 14 DAMPING-OFF IN SEED BEDS FLOWER AND VEGETABLE SEEDLINGS
... generally caused post emergence damping-off by killing the seedling at the soil line. Pythium attacks below the soil line, often at root tips. Control The best control of damping- ... as younger seedlings are more susceptible to fungicide injury than older seedlings. Other Links Plant Disease Information Notes Home Page North Carolina Insect Notes North Carolina Agricultural Chemicals Manual CALS Home ...
www.ces.ncsu.edu More from this site

Anthracnose - A Fungal Disease of Shade Trees
... include linden (basswood), tulip tree, hickory, birch, and walnut. Each species of anthracnose fungus attacks only a limited number of tree species. The fungus that causes sycamore anthracnose, for ... buds and unfolding leaves. Long rainy periods help the fungus to spread rapidly. Control Disease control measures for different trees vary slightly because the period of infection is different ...
www.ext.vt.edu

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