Disease control leaf spot

Uses as fungicide to control early and late blights of potatoes and tomatoes anthracnose in cucurbits leaf spot diseases in many crops glume blotch of wheat also used on vegetables, ornaments, berry fruits, melons, coffee and tobacco, etc. 

Uses fungicide for control of downy/powdery mildews, leaf spot diseases, etc. 

Fortunately, the same controls are effective against many leaf spot diseases. Remove and discard infected leaves. Thin plants and avoid crowding future plantings. Wash your tools and hands after handling infected plants.. Avoid overhead watering. Inspect bedding plants on purchase. Clean up plant debris to remove overwinterins sites. 

Fruit with small, dark, sunken spots or cracks on skin. Cause Bacterial leaf spot. This disease, common in the Southeast, is very difficult to control. Plant resistant cultivars, including Alfred , Curtis , Harcot , Hargrand , and Harlayne . For more information, see Fruit with small, dark, sunken spots or cracks on skin on page 166. 

Fruit with spots flesh may rot. Causes Angular leaf spot Alternaria blight black rot scab other fungal or bacterial diseases. See "Leaves with spots, blotches, or brown areas on page 85 for controls. 

Leaves spotted, yellow, and drop early. Causes Septoria leaf spot anthracnose. Since both of these fungal diseases overwinter on old leaf litter, rake up the leaves or bury them under a thick mulch in autumn. Copper sprays also control both diseases. If defoliation occurs late in the season, it does plants little harm. 

Centers of leaf spots often er.iirge then fall out. You can t cure .r > f r.c s iunr.g the current season, but ccrper spra> aids control. Keeping irrigation water away from foliage also helps. Dormant season pruning of infected buds and tw igs, w hich ha e a varnished appearance, helps prevent the disease next year. 

Prevention and Control Remove and destroy infected leaves. Clean up plant debris in fall. Use disease-free seed. Crop rotation and the use of resistant cultivars will reduce the chances of Septoria leaf spot. 

Prevention and Control Bright light or excessively high temperatures can cause sunscald. On tomatoes this problem commonly occurs when a disease such as leaf spot causes leaves to fall, suddenly exposing once-shaded fruit to full sunlight. Plant cultivars that are resistant to major foliage diseases. Once damage occurs, there is no control. 

Many diseases and even insects can be controlled by growing resistant or tolerant cul-tivars or. species. By emphasizing disease resistance in your choice of cultivars, you can completely avoid some common pest problems. For example, some newer cultivars of shell pea, including Maestro , are resistant to mosaic virus as well as powdery mildew and Fusarium wilt. Similarly, Slicemaster cucumber resists both downy mildew and powdery mildew, plus leaf spot, anthracnose, and mosaic virus. 

Protection Offered Bordeaux mix acts as a fungicide with insecticidal and insect repellent properties. Use it to control common plant diseases like anthracnose, bacterial leaf spots and wilts, black spot, fire blight, peach leaf curl, powdery mildew, and rust. 

Protection Offered You can use lime-sulfur to help control diseases like anthracnose, brown rot, leaf spot, mildew, and scab as well as scales on dormant perennials, roses, foundation evergreens, and many fruit crops. It also kills mites and scales. 

Mancozeb is a fungicide used to control many fungal diseases such as blight, leaf spot, rust, downy mildew, and scab in field crops, fruits, nuts, vegetables, ornamentals, etc. In particular, it is used to control the following early and late blights of potatoes and tomatoes leaf spot diseases on celery, cucurbits, beets. 

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