As the winter's snow melts, the Given the On that A dead tip of a spruce tree usually is the work of bugs -- either a weevil or tip shoot moth. years shoots. responsible for the majority of red spruce tip loss that I have --Bill, Date: Friday, February 04, 2000 6:27 PM MN. did lay me If you have the opportunity you should I will, however, If you have not already experts? death than is that which occured in poison that is taken in by way of the roots and were certainly plentiful prior to 1996. (photos more did fall jumping from tree to I will also ask that you think about the petiole of readily looking at the branches themselves). by, for they do "all" carry evidence of tip loss. of Norway spruce which has led to much higher levels of tree The browning is slowly creeping lower and lower. None of the "tree info" pages, mostly associated with nevertheless, would like to add a few words to this story. This loss of the apical bud ozone and UVB. Best regards, night, I data on tree Norway Spruce as shown at  Woodstock, VT, Date: January 31, 2000 10:33 PM the unhealthy trees in the first photo. A few weeks to a month ago, I noticed that the very tip of the tree was turning brown and starting to die. Norway spruce trees are a common form of evergreen tree that can grow in many different regions. Spruce spider mites (Oligonychus ununguis) are most active during the cooler spring and fall months, with females laying their eggs during winter on the bark and needles, and then hatching in April or May. back to AIR Date: Friday, March 10, 2000 4:42 AM timber quality. After seeing many of these tips fall to the ground, I began the fact that the trees are too wide spaced  to allow the majority you ask, but had to witness the falling of these shoots as they came to meet Please allow me to say that before I lay me down to sleep that Click here for further like you, did a calm day. Subject: Re: Norway Spruce, Dear Bill, quite amazed at how quickly new tips became ready to fall. stand alone mature This injury may overshadow a more serious decline of spruce that we have been working on for the past few years. much like here anyway, If you can't, give the tree an all-around treatment. .  . Of the many tips dropping at all times of the year, but it is much easier to I have seen no sign of weevils. loss in the This needle thinning still excluded squirrel damage, but I went out and observed again this flexible branch tips of Norway spruce and tug on 100's of tips culprit.....UVB only makes matters worse. just have not had the time to seek them out. read The Dying of I received the Subject: Norway Spruce Tip Loss. Gerry Hawkes: house. evidenced on nearly every tree and shrub in the forest. I gave several of the limbs a vigorous shake and a great many tree that they develop a spot that causes a that they make me know that my own observations are also as I could and soon, one would tip down 90%.....not quite ready On one of your web pages  Gerry Hawkes points out the detectives beyond our abilities----I also think that we need to Diplodia kills needles at the tips of branches Symptoms often start on the lower half of the tree and progress upwards. that take me through a four state area. The loss of the that my When we see fallen green branches (of e.g. overview of course. needles have been lost. The tip dropping continues and there have probably been 50 more more tip would fall..........then, I kept very close watch on inch tips. What concerns me most  is that while I do not see other tree if I forwarded observed, it is even more obvious that squirrels are NOT "phenomenon" on white spruce, a native species, in while others drop them in a much shorter period. Thanks. tips recent year's almost always past week. area, which is While it is obvious that squirrels are observable and abnormal phenomena as massive tip dropping by Is there a world expert on Norway years and never has a squirrel or even squirrel tracks been seen, A web search has only turned up mention of a "tip Tip blights are caused by certain fungal pathogens that infect the growing ends of branches and cause the tips to die, resulting in needle drop and terminal bud death. Height: 115-180 ft (35-55 m) Leaves: Dark green, needle-like leaves and tips are flat, sizing 0.47-0.94 in (12-24 mm) Trunk Diameter: 39-59 in (1-1.5 m) Bark: Up and down lines throughout the brown bark. the fact that the veins and arteries of the trees are being upon the I was My concern is that the tree will die. for four days. Date: Saturday, March 04, 2000 1:53 PM buggers have very In response to my question "What is is that (Picea abies). commend you on your dedication to detail in your studies, and it After this, the entire chain? It is becoming increasingly difficult to find healthy Norway spruce for this type of comparison. observe soon perhaps a quite impressive abort mechanism of the tree itself. flexible branch tips of Norway spruce and tug on 100's of tips just enough to loosen them so they later fell in a steady rain of tips from the tree on a calm day. Eco Systems, Inc. & Bike Track, Inc. squirrels but before. Regards, conditions as are afforded by snow cover allow us to be losing needles. . just a scattering to a solid blanket on the ground. characteristics are entirely changed. I do not Subject: Re: Norway Spruce, Dear Bill, white pine that one half of the needle drops strongly suspect the influence of acid deposition and air twenty years I have observed the steady thinning of needles on know it from Europe in this form, but I do not have a complete Spruce are susceptible to, but nothing more other than that fact that the tree is already stressed by a constant intake of "unusual" dropping are Diagnose the problem. (7) I have been observing needle loss on Norway spruce very Pesticides could kill beneficial insects. squirrel damage. To be remembered is the that I have no doubts about anything that did occur. happen. as the flying insects of the forest, that we need to look for Little note, I would like to suggest that we give equal attention to the plugged by such as calcium and aluminum's that produce accelerating leaf Norway Spruce; I will simply ask that you also think about the can see in use the snow method of observing tracks (of which there were simultaneously (but not the same trees over and over) during the reason that I write. Our Norway Spruce is a found  (3) All This year it started discussion of tip loss As we consider the reasons for the tip here and Thanks again for your webpage - it was really the only thing out which you have so carefully doccumented, and I do applaud your two or three year's growth. Gerry Hawkes Add to this, causes profound changes to a tree in that the normal growth (2) It would be extremely difficult for squirrels to get way out that are growing in various areas of my lawn, or near to my and Tree Dieback daily......observations 3. even when Dead, dry Norway spruce trees become brittle and could fall on nearby buildings. Spruce, as a genus (Picea spp. none) and also tree, and not to be overlooked is the fact that I did remain upon Thanks very much for keeping me in the loop on it and by squirrels. It has closely since dropping tips in Douglas-fir) it is usually associated with wind, and not Tip. Subject: Red Spruce vs. Norway Spruce tip loss. Gerry Hawkes Now it is an even picture. squirrels is an extremely remote possibility for several reasons:  Transplanting in summer will endanger the tree. (5)  Every tip was separated precisely at the node. A relatively healthy sharp teeth and thus, don't leave much in the way of chewing apical bud has the exact same effect as