Walnut Twig Beetles were found to be killing trees in Colorado as early as 2003. Walnut Twig Beetles vector the disease Thousand Cankers disease caused by a fungus, Geosmithia morbida. This is a newly recognized disease 2008 of primarily Black walnut trees Juglans nigra. Thousand Cankers disease has produced widespread death of black walnut trees in many western states during the past decade. Other species of walnut such as Arizona walnut, English walnut, and California walnut have all shown varying degrees of susceptibility to this fungus.
The affected area of the walnut tree is shallow and confined to thephloem so that it can easily be missed if inspection cuts are made too deeply into the sapwood. Minor weeping may occur at points where walnut twig beetles enter the bark but often no symptoms are associated with the beetle attacks aside from minute entry wounds or star shaped cracks. Early symptoms are yellowing of leaves and foliage thinning of the upper crown of the tree. As the disease progresses larger limbs are killed which may have dead, flagging leaves associated with them. In end stages the fungus may be introduced into the trunk and large cankered areas develop in the trunk. In susceptible hosts, such as black walnut (Julgans nigra), trees usually die within three years after initial symptoms are observed in the crown of the tree.
A newly recognized fungus, Geosmithia, kills a localized area in the phloem just under the bark in >2cm wood after introduction by the walnut twig beetle. These dead areas often overlap or coalesce from numerous strikes (35 insects per square inch of wood) causing nutrient disruption to foliage and thus leading to branch dieback.
Walnut Twig Beetle Trap II, an improved "Lindgren Style" 4-Funnel Trap. Originally designed by Staffan Lindgren at Simon Fraser University, Lindgren Funnel Traps are the most effective and user-friendly beetle traps used worldwide. Trap Type: Pheromone Trap, Lures Sold SeparatelyFully Assembled
BaseLine Bifenthrin Insecticide is approved for effective control of general pests. Featuring a concentrated version of the trusted active ingredient Bifenthrin in Onyx and Talstar insecticide. BaseLine Insecticide provides long lasting protection against Mountain Pine and other Bark Beetles.
Active Ingredients: Bifenthrin 23.4%Insecticide Mode of Action: 3A Insecticide Class: PyrethroidsEPA Signal Word: WARNING / AVISOApplication Rate Range: (see label) Container Size(s): 1 Gal.
Bifen XTS Bifenthrin insecticide provides long lasting protection against Mountain Pine and other Bark Beetles.Active Ingredients: Bifenthrin 25.1%Insecticide Mode of Action: 3AInsecticide Class: Pyrethroids EPA Signal Word: WARNING / AVISOApplication Rate Range: (see label) Container Size(s): 1 Qt., 1 Gal.
Onyx EC Bifenthrin Insecticide provides long lasting protection against Mountain Pine and other Bark Beetles.Active Ingredients: Bifenthrin 23.4%Insecticide Mode of Action: 3AInsecticide Class: PyrethroidsEPA Signal Word: WARNING/ AVISOApplication Rate Range: (see label) Container Size(s): 1 Qt.
This product has been discontinued by the manufacturer. Please consider BaseLine Insecticide, FMC.
Onyx Pro Insecticide for Commercial Non-Food Use in Interiorscapes and on Outdoor Ornamentals, Christmas Trees, Nurseries, Lawns, Sod Farms, and Golf Courses.Restricted Use: YesActive Ingredients: Bifenthrin 23.4%Insecticide Mode of Action: 3AInsecticide Class: PyrethroidsEPA Signal Word: WARNING/ AVISOEPA Registration Number: 279-4269Application Rate Range: (see label) Container Size(s): 1 Qt.
This product is a Restricted Use Pesticide and requires an Applicator's License for purchase. The Applicator's License must match the state for shipping.
Sevin SL Carbaryl Insecticide provides broad-spectrum control of more than 130 turf and ornamental pests. Active Ingredients: Carbaryl 43.0%Insecticide Mode of Action: 1A Insecticide Class: CarbamatesEPA Signal Word: CAUTION / PRECAUCIONApplication Rate Range: (see label) Container Size(s): 2.5 Gal.
Treegator Original is a slow release watering bag that is perfect for newly planted or established trees from 1 to 8 inches in trunk diameter, with branches beginning at least 25 inches from the ground or higher.
Ooze Tube Professional Tree Establishment patented system specifically engineered to establish trees in under-irrigated sites with minimal cost and maximum survival.
Synergy Shield MCH Bubble Caps, Douglas-fir Beetle Repellent uses MCH – a naturally occurring anti-aggregation pheromone of the Douglas-fir beetle to protect trees from attack by Spruce, and Douglas-fir beetles.Active Ingredients: 3-methyl-2-cyclohexen-1-one 97.9% (500 mg)EPA Signal Word: CAUTION / PRECAUCIONApplication Rate Range: 1 or 2 /tree, 40 /acre Container Size(s): Min. Order 10 pcs.
Not for Sale to: CA
SALES ARE FINAL. No refunds, returns, or exchanges. This product is perishable.
Synergy Shield Pine Beetle Repellent Verbenone Pouch, for Mountain Pine, Southern Pine, Western Pine and other Bark BeetlesActive Ingredients: Verbenone, 4,6,6-trimethyl-bicyclo(3.1.1) hept-3-en-2-one EPA Signal Word: CAUTION / PRECAUCIONApplication Rate Range: 1 or 2 /tree, 20 - 60 /acre Container Size(s): Sold in Multiples of 10 pcs.
Not for Sale to: CA
SALES ARE FINAL. No refunds, returns, or exchanges. This product is perishable.
AXXE Broad Spectrum Herbicide is a non-selective, weed control for grasses and broadleaf weeds. It is formulated to deliver maximum performance and provide fast-acting results on a long list of weeds and grasses, as well as most mosses and lichens. OMRI Listed.
Grandevo WDG Bioinsecticide Miticide is a new water dispersible granule formation that contains several active compounds that repel, stop feeding, reduce reproduction and induce mortality to prevent the development of damaging populations of sucking and chewing insects, flies and mites. Organic Certification(s): OMRIActive Ingredients: Chromobacterium subtsugae strain PRAA4-1 30.0% Insecticide Mode of Action:Insecticide Class:EPA Signal Word: CAUTION / PRECAUCIONApplication Rate Range: (see label) Container Size(s): 20 Lbs.