Yellow Headed Spruce Sawfly
Article by: Paul Burke
Appearance:
Yellowheaded spruce sawfly is a serious pest , Discover the Art of Topiary in our area and is found in most types of spruce. Early July is when the olive green , Orchids Plus More Newsletter - December, 2004 larvae first appear and can be found on the branches of spruce. Generally speaking the larvae are similar to budworm in the fact they prefer new growth for feeding. Once the finish with this they have been known to move on to the older growth on the tree. , Beauty With Indigenous Species One way of identifying this pest , Backyard Landscaping Ideas To Make A Difference In Your Home is to disturb them while on the branch. They will usually rise up both their head and tail and produce a liquid from their mouths.
Life Cycle:
Adults emerge in early to mid June and resemble a small wasp in appearance. These adults begin laying eggs in openings they create at the base of new growth needles. Unlike budworm these eggs are laid singularly. As the larvae emerge they immediately begin feeding on the edges of the new growth needles. As they feed and grow , How to Create a Wildflower Garden they will move on to feed on the entire needle. This process continues for about a month. At this time the larvae will fall , Using Annuals in Your Perrenial Garden to the ground to pupate and over-winter in the ground beneath the tree. , Home Landscaping Etiquette
Controlling sawfly:
Weather, parasites, and predators generally will keep populations of sawfly under control. This pest , Your Cottage Garden tends to prefer small, young trees , Discover the Art of Topiary growing in the open and on its own. A tree , Tips for Preparing a Planting Bed growing for 3 to 4 years in your front yard , Bamboo: a Versatile and Renewable Resource is ideal for this pest , How to Choose a Snow Blower for Your Garden to take advantage of. They begin by eating single branches but can move on to spread to the entire tree. , Crime Prevention through Environmental Design (CPTED) If defoliation occurs repeatedly the tree , Pond Liners - Which One to Use? may be killed. In the event you are required to use an insecticide ensure you follow all label directions carefully. These insecticides should be applied once the sawfly larvae begin to feed. Generally this will occur about 10 days after new growth sheds , How To Plan A Garden their bud , Miniature Roses caps. When your tree , Beauty With Indigenous Species is young and small enough you can use cultural controls to combat this pest. , CO2 for 'Free' By taking the time to handpick these larvae you will minimize the amount of insecticides used on your trees. , Planting and Caring for Flower Bulbs Paul is a Certified Pesticide Applicator in Alberta,Canada. He has over 15 years experience in the lawn , Abatement Challenges of Non-Native Noxious Weeds care industry.
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