The Red Gum Lerp Psyllid (Glycaspis brimblecombei) is an insect that is native to Australia. In June 1998, this insect invaded California and was first found in Los Angeles County. This pest feeds exclusively on species of Eucalyptus and in California it exhibits high preference for river red gum (Eucalyptus camaldulensis), flooded gum (E. rudis), and forest red gum (E. tereticornis). Red gum lerp psyllid has demonstrated remarkable invasion potential. After its initial discovery in California, red gum lerp psyllid was found in Baja California, Mexico in 2000, Florida and Hawaii in 2001, Mauritius 2001, South America in 2002, and Portugal and Spain in 2007. This pest is a major threat to susceptible Eucalyptus species that are grown in urban landscapes, as wind shelters, or as commercial forests.
Psyllid nymphs and adults feed on sugar rich phloem. Honeydew, is a sticky waste product excreted by nymphs and adult psyllids after digesting phloem. As nymphs feed they can use honeydew excretions to form a protective white cap called a "lerp," the conspicuous white cone seen on eucalyptus leaves. Nymphs feed and grow to adulthood under this crystalline cap. Upon completing development, winged adults leave the protection of the lerp and fly to new plants to mate, feed, and lay eggs.
High density red gum lerp psyllid populations secrete large amounts of honeydew and excessive feeding pressure causes premature leaf drop. Heavily infested leaves are readily noticeable because of the large numbers of white lerps encrusting the leaf surfaces. Falling leaves foul surfaces beneath infested trees such as vehicles parked under trees, and swimming pools, the bottoms of shoes are soiled when sticky leaves are walked on, and leaf drop results in the rapid accumulation of flammable material beneath trees and on the rooftops of houses and other buildings. Extensive and repeated defoliation events weaken trees, and contributes to the premature death of some highly susceptible species, in particular E. camaldulensis. In Southern California, thousands of mature E. camaldulensis were killed within 2-3 years by uncontrolled populations of red gum lerp psyllid. The removal costs for these dead trees have cost home owners, city councils, community groups, and utility boards millions of dollars. Honeydew excretion promotes the unsightly growth of black sooty molds on leaves and branches, and honeydew dripping from heavily infested trees can stain concrete sidewalks.
Abamectin SPC 0.15 EC Insecticide offers reliable, longlasting control of mites and leafminers, along with suppression of aphids, thrips and whiteflies. Active Ingredients: Abamectin 2%Insecticide Mode of Action: 6 Insecticide Class: Avermectins EPA Signal Word: WARNING / AVISOApplication Rate Range: (see label) Container Size(s): 1 Qt., 1 Gal.
Criterion 2F Imidacloprid Insecticide Bayer's own generic for their Merit 2F is identical to Merit at a fraction of the price and is one of the most effective broad-spectrum insecticides for use on turf, ornamentals and various crops in the market today.Active Ingredients: Imidicloprid 21.4%Insecticide Mode of Action: 4AInsecticide Class: NeonictionidsEPA Signal Word: CAUTION / PRECAUCIONContainer Size(s): 40 Oz., 1 Gal.
Criterion 75WSP Insecticide a broad-spectrum insecticide for use on turf, ornamentals and crops. Active Ingredients: Imidacloprid 75.0%Insecticide Mode of Action: 4AInsecticide Class: NeonicotinoidsEPA Signal Word: CAUTION / PRECAUCIONApplication Rate Range: (see label) Container Size(s): 4 x 1.6 Oz. WSP
Dominion 2L Insecticide, a 21.4% imidacloprid provides long lasting control for Emerald Ash Borer (EAB), adelgids, armored scales, termites and many other boring and sucking insects.Active Ingredients: Imidacloprid 21.4%Insecticide Mode of Action: 4AInsecticide Class: NeonictinoidsEPA Signal Word: CAUTION / PRECAUCIONApplication Rate Range: (see label) Container Size(s): 27.5 Oz., 2.15 Gal.
Greyhound Abamectin Insecticide for systemic insect control on landscape ornamentals and interior plantscapes. For use by professional arborists/applicators with the ArborSystems Wedgle Direct-Inject Tree Injection System.Active Ingredients: Abamectin B1 1.9%Insecticide Mode of Action: 6Insecticide Class: AvermectinsEPA Signal Word: WARNING / AVISOApplication Rate Range: (see label) Container Size(s): 120 ml., 1000 ml.
Lada 2F T&O Insecticide is a highly effective and versatile insecticide registered to control over 50 insect pests. Lada is a best in class imidacloprid formulation with top of the line packaging. It is registered in application for turf grass (including sod), landscapes ornamentals, listed fruit and nut trees, interior plantscapes, nursery and greenhouse grown ornamentals and vegetable plants.Active Ingredients: Imidacloprid 21.4%Insecticide Mode of Action: 4AInsecticide Class: NeonicotinoidsEPA Signal Word: CAUTION / PRECAUCIONApplication Rate Range: (see label) Container Size(s): 1 Qt.
Mallet 75WSP Insecticide a broad-spectrum insecticide for use on turf, ornamentals and crops.
In stock, ships within 24 hours.Active Ingredients: ImidaclopridInsecticide Mode of Action: 4AInsecticide Class: NeonicotinoidsEPA Signal Word: CAUTION / PRECAUCIONApplication Rate Range: (see label) Container Size(s): 4 x 16 Oz. Pkg, 4 x 4 x 16 Oz. Case
Merit (Imidacloprid) Microinjection Insecticide The #1 tree and shrub insecticide now available as Micro-injection product. Tree Tech Microinjection Systems and Bayer Environmental Science present Merit Injectable, a powerful new product to inject in the tree trunk or root flare tissue.Active Ingredient: Imidacloprid 17.1%
Merit (Imidacloprid) Microinjection Insecticide The #1 tree and shrub insecticide now available as Micro-injection product. Tree Tech Microinjection Systems and Bayer Environmental Science present Merit Injectable, a powerful new product to inject in the tree trunk or root flare tissue.Active Ingredient: Imidacloprid 17.1%
Merit 75WP Imidacloprid Insecticide provides the longest-lasting insect control at exceptionally low use rates.Active Ingredients: Imidacloprid 75.0%Insecticide Mode of Action:Insecticide Class:EPA Signal Word: CAUTION / PRECAUCIONApplication Rate Range: (see label) Container Size(s): 2 Oz.
Merit 75WSP Imidacloprid Insecticide provides the longest-lasting insect control at exceptionally low use rates. Active Ingredient: Imidacloprid 75.0%Signal Word - CAUTION / PRECAUCION
Vivid II (Abamectin) Microinjection Insecticide A new biorational insecticidal compound by Syngenta is available for controlling elm leaf beetle, scales, mites, aphids and other pests. Tree Tech is the only source of abamectin for tree microinjection in California.Active Ingredient: Abamectin 1.0%
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.
Treegator Jr. Pro Slow Release Watering Bag for Evergreens, Trees & Shrubs. Professionally water any newly planted tree or shrub with a Treegator Jr. Pro Slow Release Watering Bag! Dual emitters continuously provides water over a 5 to 8 hour time period with no run-off. Brown color and low profile blends with existing landscape and reduces visibility while in use. Installs in minutes with no tools. Requires filling just 1 to 2 times per week. Just place, fill, and walk away! Sold Individually, Case Qty. = 12
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.Sold Individually
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. OMRI Listed.Active 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.