Prune out cross-over branches that will become horns. A good organic grower must be an expert shearer to make the best use of tree growth. One method of pest control is to grow trees as quickly as possible. Cutting down and removing these trees will keep these pests from spreading to other trees. Some trees are more prone genetically to pests such as SSM, BWA, elongate hemlock scale (EHS), and rosette bud mite (RBM). Culling Problem Treesįraser fir is a seed run crop. Bush hog these field borders every 2 to 3 years to keep vegetation in a state of early succession. Even briars and brush help bring in natural predators. Allow field borders to grow up in grass and flowers.
You may need to establish clover ground covers the year before setting trees. Promote flowering weeds such as yarrow and clovers in ground covers around the trees. Promote Flowering Weedsīiodiversity of flowering plants is key to attracting predators. To reduce pressure from BWA, avoid placing an organic Christmas tree field near natural stands of Fraser fir, near true firs that are growing in yards or in Christmas tree fields that are abandoned or not properly taken care of. Though it can be controlled organically, treatments will need to be made every year. The same thing is true for the balsam woolly adelgid (BWA). Avoid Close Proximity to balsam woolly adelgid Providing a habitat that does not favor mites will go a long way in reducing the need to treat for them. The dust that settles on the needles will kill the predatory mites by damaging their exoskeleton as they run in search of prey, causing them to dry out and die. Dust from gravel roads also create SSM problems. A Christmas tree field surrounded by woods almost never has a problem with spider mites. So do trees grown on a south or south-west exposure. Frasers grown at elevations lower than 3,000 almost always have problems with SSM. Predatory mites prefer cooler and more humid conditions than the SSM. Therefore, it’s important to grow trees in a habitat that favors predatory mites and not spider mites. Spider mites (SSM) are not easy to control organically. These include the following: Site Selection and Spruce Spider Mite Since pest control will not be as easy with organic pesticides, it is important follow good cultural practices that promote tree growth and reduce problems with pests. Therefore, when it comes to pest control, it is important to start with a good site, scout regularly, and control problems before they become widespread. Pesticides such as horticultural oil are harder to apply and more costly. It is harder to get soil nutrition for trees through organic fertilizers. Grasses and weeds can choke out and kill young Fraser fir seedlings. Fraser fir is a slow-growing tree that only produces one flush of growth each year. The organic production of Fraser fir Christmas trees is not easy. Please note that some applications and/or services may not function as expected when translated. NC State Extension does not guarantee the accuracy of the translated text. As with any Internet translation, the conversion is not context-sensitive and may not translate the text to its original meaning.
#Insecticides and pesticides used on frasier firs free
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