![]() Nitrogen nutrition will be more difficult to adjust when the mulch begins to decay. Sawdust or wood shavings can be used as long as certain species of trees are avoided (e.g. Materials for mulches can be varied and adjusted to what is available and economical. Mulches - Weeds may also be controlled by the use of mulches. It is more effective if the area is free of rhizome-forming weeds. Mechanical weed control should be shallow enough not to harm tree roots and should not be done on steep slopes in order to avoid soil erosion. Mechanical in-the-row tillage with self-guiding implements is generally only used in Organic management systems. Tillage - Hand weeding is practical only in very small areas. The area around the tree trunks, however, should be kept relatively clean of vegetation to reduce the activity of voles and prevent them from girdling the trees. Some re-growth after July 15 may be desirable to help the trees develop winter hardiness and to provide some ground cover and increase soil temperatures in winter. Reduction of competition from weeds continues to be very important in the life of the orchard, especially during the early part of the growing season. Recently planted trees compete poorly for moisture and nutrients even with sparse weed growth heavy sods will cause severe stress resulting in the stunting of trees. The control of all vegetation around newly planted fruit trees is essential to promote satisfactory growth. Weed Identification Keys - Ontario Crop IPM - follow the images of plant parts to identify an unknown plant Weedinfo.ca - a searchable database containing 139 weeds along with information on weed management research and related topics. Invasive Weeds of Eastern Washington- a guide to the identification and control of invasive weeds in eastern Washington. ![]() Plant Profiles- Okanagan and Similkameen Invasive Species Society - images and information on established, locally distributed and threatening invasive plants. Picture Guidesįield Guide to Noxious and Other Selected Weeds of British Columbia - images and information on regulated noxious weeds in BC. Any plant not found in any of the publications or weed ID web sites should be delivered to the nearest BC Ministry of Agriculture or Canadian Food Inspection Agency office for further analysis by specialists to confirm if the plant is a new invasive plant species. There are several useful published weed field guides and Internet sites that should be consulted if there is any doubt as to the identity of the plant and its regulatory status (i.e. Along with a correct identification is gaining an awareness of the seasonal development and dispersal of the plant in order to correctly time the application of available chemical and non-chemical control options. ![]() As with insects and plant disorders, it is important to correct identify a suspected weed or unfamiliar plant before taking any control action.
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