Click Here To Download The Science of Planting Trees Urban Tree Decline Tree species affected: Deciduous trees Issues: Thinning crown, progressive die back over several years, vigorous shoots below die back, death Description: Tree decline is the gradual loss of tree health and vigor over time. Decline isn’t a specific disease but rather a combination of stress factors working together over a few to several years to eventually cause tree death. These stress factors can be living or non-living and can act singly, in concert, or in succession. Determining causes of decline requires careful exami ..read more

Click Here To Download Urban Tree Decline Urban Tree Decline Tree species affected: Deciduous trees Issues: Thinning crown, progressive die back over several years, vigorous shoots below die back, death Description: Tree decline is the gradual loss of tree health and vigor over time. Decline isn’t a specific disease but rather a combination of stress factors working together over a few to several years to eventually cause tree death. These stress factors can be living or non-living and can act singly, in concert, or in succession. Determining causes of decline requires careful examination of t ..read more

Click Here To Download Troubleshooting for Irrigation Troubleshooting for Irrigation The best way to troubleshoot electrical system problems within an irrigation system is with a step-by-step approach. The method detailed below isolates and checks each of the irrigation components: the controller, zone control valves and the wiring that connects it all together. Step 1: Check the Obvious Before launching a thorough system diagnosis, don’t forget to check the obvious. Is the system water supply on? Are there isolation valves at the backflow preventer, pump station or in the mainline that are pr ..read more

Click Here To Download FAQ on Backflow Backflow Prevention – Frequently Asked Questions What is backflow? Backflow is the undesirable reversal of flow in a potable water distribution system through across-connection. A cross-connection is an actual or potential link connecting a source of pollu-tion or contamination with a potable water supply. Backflow may allow liquids, gases, nonpotablewater and other substances, from any source, to enter a public water system. How does backflow occur? Backflow may occur due to high pressure on the customer side, or low pressure in the watersystem. Backflow ..read more

Click Here To Download How to set an Irrigation Controller How to set an Irrigation Controller Date & Time – set up the date and time to match the current date and time Set Seasonal Adjustment to 100% – Turn your dial to Seasonal Adjust and press the up or down arrows as necessary Program (A, B, or C) Pick one program and clear out the rest if anything is set in them Only set up multiple if you have special circumstances and don’t want to have to re-set original program “start-times” and “run-times” Set start times for each program Each program runs all zones for their “run time” i ..read more

Click Here To Download Irrigation Pump Education Japanese Beetles Tree species affected: Japanese beetles are known to feed on over 300 plant species. Linden (basswood), elm, crabapple, sycamore (planetree), sassafras, plum, cherry, and bald cypress are commonly damaged, as well as grape and rose. Concerns: Lacy, skeletonized leaves. Partial or entire defoliation. Description: Japanese beetles feed on the upper surface of leaves, leaving behind veins. Damage is frequently seen near the top of the tree or plant first. These beetles often feed in groups. Insecticides are not compatible with tryi ..read more

Click Here To Download Japanese Beetles Japanese Beetles   Tree species affected: Japanese beetles are known to feed on over 300 plant species. Linden (basswood), elm, crabapple, sycamore (planetree), sassafras, plum, cherry, and bald cypress are commonly damaged, as well as grape and rose. Concerns: Lacy, skeletonized leaves. Partial or entire defoliation. Description: Japanese beetles feed on the upper surface of leaves, leaving behind veins. Damage is frequently seen near the top of the tree or plant first. These beetles often feed in groups. Insecticides are not compatible with trying ..read more

Click Here To Download Jumping Oak Gall Jumping Oak Gall Tree species affected: White oak (Quercus alba) primarily, and some other white oak group species.Concerns:Leaves on entire crowns of white oak trees turning brown in late spring. In some areas, whole hillsides appear brown Concerns: Leaves on entire crowns of white oak trees turning brown in late spring. In some areas, whole hillsides appear brown. Description: High populations of a very tiny, native, stingless wasp (Neuroterussp.) cause pinhead-size galls (abnormal plant growths) to form on the undersides of leaves. Each round, button ..read more

Click Here To Download Juniper Tip Blight Juniper Tip Blight Introduction   Juniper tip blight, a progressive dying back of twigs and branches, can be caused by one of three fungi, Phomopsis juniperovora, Kabatina juniperi, or Sclerophoma pythiophila. These diseases are devastating to young plants while plants more than five years old are less seriously damaged. In addition to many species of juniper, arborvitae, white cedar, cypress and false-cypress are also susceptible to P. juniperovora. Kabatina juniperi infects juniper species primarily, but S. pythiophila may also infect pines, Dou ..read more

Click Here To Download Oak Wilt Oak Wilt Tree species affected:Oaks, especially the red oak group Concerns:Leaf discoloration and wilt, tree defoliation and death Description: Oak Wilt is a lethal disease of oaks, especially species in the red oak group. The fungus responsible, Ceratocystis fagacearum, invades the tree, causing it to die. In Missouri, the oak wilt fungus is spread primarily when sap-feeding beetles carry oak wilt spores to fresh wounds during the early part of the growing season. Once established in a tree, oak wilt can move though root grafts connecting nearby oaks. Symptoms ..read more