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Injections using a soil probe or lance should be 2 ½ feet apart, and 8-12 inches deep for trees. Begin lance injection 2-3 feet from the tree trunk, and work out 5-10 feet beyond the drip line of the branches. Use a hydraulic sprayer at 100-200 lbs pressure and a soil lance designed for liquid fertilizer with a manual shut off valve and three or four horizontal discharge holes at 90 degrees in its point. Inject half a gallon of fertilizer solution into each hole. The addition of water to dry soil as occurs during the liquid injection process is an excellent side benefit. We use 4 ingredients in our custom blended mix mycorrhizae,Arborgreen,merit and organic bio stimulant This formulation increases root density, draught tolerance and nutrient uptake for the life of the plant, supplies a balanced fertilizer for over 1 year and protection from sucking insects for up to 8 months. please take a moment to review each ingredient. mycorrhizae beneficial fungus that attaches itself (and enters root cells) to form a symbiotic relationship with the roots of trees and other plants
organic bio stimulant promotes and stimulates faster root growth in existing and transplanted trees,shrubs,ground cover, ornamentals and turf.
merit
merit (imidacloprid) when used as a soil injection will control aphids, thrips, whitefly, lace bug,adelgid,physilids,bronz birch bores and numerous other plant feeding insects. it takes 2-3 months for a medium sized tree to take it up, and will last up to 8 months in your tree. on smaller trees and plants the uptake time is considerably less. ARBOR GREEN MORE DOLLAR VALUE THAN ANY OTHER COMMERCIAL FERTILIZER
Why specify Arbor Green? Arbor Green is easy to handle, is not subject to combustion, is not corrosive and has much smaller bulk than low-analysis materials. Furthermore, since Arbor Green is made to consistent product specifications, it has a predictable nutrient release pattern. A complete fertilizer, Arbor Green 30-10-7 contains high quality nitrogen, phosphorus and potassium formulated from urea-formaldehyde and mono-potassium phosphate. The nitrogen in Arbor Green is bound in organic molecules and then released in the soil by the same microorganisms that break down other organic matter. Due to the complex nature of the compounds found in Arbor Green, its release rate is slower and more uniform than most other organic fertilizers. Nitrogen is released over a two-year period during the growing season, when soil bacteria are active. Nitrogen is not released in the winter since the bacteria which decompose the organic molecules are not active when the soil temperature is below 50 degrees. Consequently, the nitrogen is more efficiently utilized since it is not subject to winter leaching when the roots are not actively absorbing nutrients. Comparison of Davey Arbor Green with other fertilizers. Davey Arbor Green has been tested for 15 years by The Davey Tree Expert Company. Arbor Green has been granted two U.S. patents because of its unique abilities. Advantages of Arbor Green: WIN (water insoluble nitrogen) is one way to measure the quality of a fertilizer. The higher the WIN, the longer the nitrogen remains in the soil. 34% of Arbor Green is released over two growing seasons * Helps promote initial plant growth *Non-burning *No salt build-up - low salt index 66% of Arbor Green is released over two growing seasons *Uniform growth *Low leach potential *Cost-effective. Salt Index: A measure in determining fertilizer quality. Salt index measures the potential for a fertilizer to raise the soluble salts and osmotic pressure of soil solution, which reduces water uptake by plant roots, resulting in physiological drought or burn. Arbor Green has a salt index of slightly less than 6, which is the lowest of any commercially available, complete fertilizer. Most fertilizers have a salt index in excess of 30. Arbor Green is safe for newly transplanted shrubs and trees: *Low leach potential *Non-burning *No salt build-up *Enhances nutrient utilization.
Foliar Sprays
To correct minor element deficiencies, spraying liquid fertilizer on the foliage should be considered, especially for correcting iron deficiency using chealated iron. This method should not be regarded as an adequate means of providing all the necessary mineral elements required by major element-deficient plants in the amounts necessary for satisfactory growth. Micronutrient spray applications are most effective when made just before or during a period of active growth, usually from spring to early summer. Response, as indicated by greening of chlorotic foliage and normal growth coming fro buds on affected shoots, is usually observed from 2 to 8 weeks after treatment, because response time varies. Factors in response time include the plant species, age of plant and its parts, time of year, severity of the deficiency and soil conditions under which plants are growing. One or two applications during the year will generally prevent or control deficiencies, but under some conditions, it may be necessary to make several treatments annually to maintain healthy growth. Trunk
Injections and Implants These methods are used for specific element deficiencies, particularly iron or manganese, as well as for trees growing where there is restricted soil surface area under the drip line. Injections or implants should be made as low as possible on the trunk. Normally, this is done with a clean, sharp drill of the appropriate size. Capsules should be implanted beneath the bark and completely into the xylem tissue. Early spring before growth starts is the best time for trunk implants and injections. Wound closure is most rapid from spring treatment. Trees under 4 inches in diameter should not be treated with injection or capsule implants. Do not inject or implant when soil moisture is low as sever foliar burning may occur. SECTION F: ADDITIONAL FERTILIZER GUIDELINES Proper and timely applications of fertilizer will produce beneficial results on most trees. Newly established trees will grow more rapidly following fertilization with a nutrient or combination of nutrients that previously were present in only limited amounts in the soil. The results are shown in increased leaf size, length of current season twig growth, and more rapid increase in height. Slow growing tree species may also be stimulated to grow faster by fertilizing. Abnormal leaf color and small leaf size often indicates nutrient deficiencies in the soil. Various colors or patterns of color indicate deficiencies of specific essential nutrients. The leaves of many trees become darker green following fertilization, making them more conspicuous and attractive. Fertilizing can help maintain mature trees in a vigorous growing condition. A vigorously growing tree is more winter hardy and less susceptible to many diseases and insect pests than is a less vigorous tree. Canker-causing fungi occur more commonly in weakened trees. Also, may of the none-infectious tree diseases develop when soil nutrient, oxygen and moisture conditions are unfavorable. Healthy, vigorous trees tend to resist borers, while those growing under unfavorable moisture or nutrient conditions are more susceptible to attack by these insects. Established trees weakened by leaf diseases, insect defoliation, mechanical injury, soil compaction, drought, or other causes often show reduced twig and trunk growth or dying of branch ends. Fertilizing may stimulate additional growth so that the plant can compensate for the adverse conditions that caused decline. 1. To Prevent Plant Injury – Avoid use of lawn fertilizer/herbicide combinations where the roots of desirable and sensitive vegetation could pick up herbicide. Herbicides for use around trees should be applied separately at the rates suggested on the label. |
