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Evaluation of Phyton-27 for control of Verticillium wilt on Japanese Maple, 2006-2008. During the acute stage, maple trees will have leaves that curl, dry, appear abnormally red or yellow, and fall. The fungus first... Signs of Disease. (field bean, kidney, lima, navy, and pinto), Garbanzo Bean (Chickpea), Cicer arietinum, Control of Some Common Aquatic Weeds with Herbicides, Treated Water Use Restrictions (Number of Days), Effectiveness of Major Forestry-registered Herbicides during Seasons of Optimum Usage, Oregon Basis, Recommendations for Broadcast Spraying for Control of Listed Species, Recommendations for Directed Spot Spray, Tree Injection, and Basal Bark Treatment, Hybrid Cottonwood (Hybrid Poplar) Grown for Pulp, Vegetation Management in Orchards, Vineyards, and Berries, Blueberry, Gooseberry, Currant, and Elderberry, Important Preharvest Intervals (PHIs) for Vegetables, Site Preparation, Stale Seedbeds, and Burndown Applications, Registered Uses of Carfentrazone (Aim) Herbicide in Food Crops, Crop Rotation Intervals (months) for Common Soil-active Herbicides, Herbicide Effectiveness in Christmas Trees, Weed Control in Container-grown Nursery Stock, Weed Control in Field-grown Nursery Stock, Ornamental Bulb, Rhizome, Corm, and Tuber Crops, Established Tree, Shrub, Rose, and Ground Cover Landscapes, General Maintenance around Ornamental Plantings, Susceptibility of Broadleaf Weeds in Turf to Common Herbicides, Weed Treatments and Available Products for Home Gardens and Landscapes, Managing Unwanted Vegetation in Riparian Restoration Sites, What to Do in Case of Pesticide Poisoning, Personal Protective Equipment (PPE) Definitions, Cleaning, Recycling, and Disposing of Agricultural Pesticide Containers, Disposing of Unusable Pesticides and Agricultural, Household and Residential Pesticide Products, Pesticides, Endangered Species, and Mandatory No-spray Buffer Zones, Worker Protection Standard (WPS) for Agricultural Pesticides. & Clewes, E. (2003). I’ve had this happen to at least four Lace leaf weeping Japanese maples in my landscape and it’s happened over a period of time. Note Although Phyton 27 is registered as a spray it is not recommended based on a single trial where it was ineffective when used before or after infection. There are over 300 plant species susceptible to this fungus. Read on to find out how to distinguish verticillium wilt from other plant diseases and what to do about it. Relatively soft wood renders silver maple susceptible to a number of wood rotting fungi and it is susceptible to various leaf molds and wilts (e.g., anthracnose, verticillium wilt, leaf spot, tar spot). Verticillium wilt of maple. Silver maple will grow in areas that have standing water for several weeks at a time. It is best to consult local nurserymen or ag extension departments as to silver maple problems common to your area. Symptoms Leaves on one side of the tree or on just an individual branch suddenly wilt and die. While maple trees can suffer from a number of general problems, verticillium wilt seems to be the most common and dangerous disease plaguing maple tree owners. Diagnosis Step 1 Examine the plant for wilted, yellow foliage. Note how the discoloration occurs along the direction of the grain. In cross sections of the stem, vascular discoloration will appear in rings or arcs. In addition, extra watering can help to decrease the problems of wilt. If the tree dies and/or is removed, replace it with a nonsusceptible host such as any conifer, birch, dogwood, or sycamore. Later, other limbs wilt and die. Verticillium wilt is a fungal disease that affects over 300 species of plants, including many common trees and shrubs. Publications since 1992 planted to potato or tomato ; however, efforts to maintain tree health and can. Spot, cottony maple scale, maple bladder gall a possibility that these symptoms in spring or fall when are... 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