Parasitic wasps parasitize a variety of insects such as aphids, caterpillars, beetle larvae, flies and hornworms, at different growth stages. Few species of parasitic wasps sting, and then only when they’re mishandled.
Swarming of honey bee colonies is the way they reproduce hives. In this case, in mid-June, the new swarm landed on some flowers that border a walk way at our shop.
Too much Rain? With our very wet late spring, we have received a few phone calls about damage that might be occurring in landscapes around the upper Willamette Valley. Trees and shrubs in the growing season react to rain and wind much stronger, than when they are dormant in the winter. In most cases we [...]
Weevils feed on the roots, leaves and sometimes the buds of strawberry, raspberry, clover, spruce, salal, Douglas-fir, yew and many woody shrubs and flowers, like primrose or Lily of the Valley. This is one of the most destructive pests in the Pacific Northwest.
What Is a Certified Arborist? Information from the I.S.A.: http://www.treesaregood.com/treecare/Hire_Arborist.aspx An arborist by definition is an individual who is trained in the art and science of planting, caring for, and maintaining individual trees. ISA arborist certification is a nongovernmental, voluntary process by which individuals can document their base of knowledge. It operates without mandate of [...]
Photinia Leaf spots Entomosporium mespili Entomosporium is a fungal disease that spots the leaves of plants in rose family, including apple, crab apple, hawthorn, pear, photinia, pyracantha, quince, and Rhaphiolepis. In the Willamette Valley, we see rampant problems on our Photinia. This disease is more than unsightly; heavy infections will cause defoliation, and death of [...]
Box Elder bugs Boisea trivittatus Boxelder bugs, Boisea trivittatus, is a well-known nuisance insects in the Pacific Northwest. We generally do not notice them in the summer months, as they live quietly in Box Elder or Maple trees. They only become an issue during the early spring or fall, when they can envelop buildings in [...]
The secret life of soil CORVALLIS, Ore.—Soil is alive. Much more than a prop to hold up your plants, healthy soil is a jungle of voracious creatures eating and pooping and reproducing their way toward glorious soil fertility. A single teaspoon (1 gram) of rich garden soil can hold up to one billion bacteria, several [...]
We will be taking the next few days off for the Holidays. We will return January, 2010, with more advice and expertise from your Tree and Shrub service. We will be available for any emergency work, as always. With the new year, we re-commit our Mission to our customers Regarding our Tree Service; Pruning, Removal [...]
Pruning Large Trees. The following is an excerpt from the International Society of Arborists (ISA). They have many brochures and helpful advice for all. E-mail inquiries: isa@isa-arbor.com Pruning large trees can be dangerous. If pruning involves working above the ground or using power equipment, it is best to hire a professional arborist. An arborist can [...]
