Search Results

1000 Cankers Disease #141786

Asked 2013-07-19 17:51:56

Are there any new developments for treating black walnut tress suffering from 1000 cankers disease in 2013?

Two years ago I treated the roots in early Spring with about 5 gallons of diluted imidacloprid (a Merit product) and the tree looked very healthy that season.  I did not treat the next season and the tree looked well for the majority of the season but weak by September.  I treated similarly this year with the imidacloprid solution, but my tree has not responded and looks very stressed. Canopy is thin with appearance of a few dead branches on lower part of tree.  No appearance of yellowing or darkening of bark on main trunk.

Can I treat with injected insecticide at some point between now and the next growing season and have a likelihood of seeing improvement?  If so, when should I treat and with what and how much?




Denver County Colorado

11 year old spruce with first time browning needles #431907

Asked 2017-10-18 19:39:13

Our spruce pine has brown needling throughout the trunk area and inside branches. There is new growth at the top of the tree and the tips of the unaffected branches. West exposure. No signs of insects Should we trim off the brown branches?



Scott County Minnesota

12 yr old emerald green cedar #636923

Asked 2020-05-17 20:00:05

My emerald green cedar started to dry out from the top and is now turning red. These are at least 12 yrs old. What is the cause ? Will the affected cedar affect the other cedars. What to do to save them. I have 3 affected.



Multnomah County Outside United States

1250 U #317381

Asked 2016-04-29 16:12:17

I'm hoping you can identify these bug(s). Pulled from work spaces.



District of Columbia County District of Columbia

1250 U plus #317593

Asked 2016-04-30 16:25:45

Identifying specimens



District of Columbia County District of Columbia

15 year old cluster of Vine Maples infested with borers. Risk management for other trees? #489482

Asked 2018-10-10 02:21:28

Assuming we have to remove our infested cluster of Vine Maples, should we not plant new Acer species? Is there danger to be managed for our close-by Lilac or our backyard Rhodies, Yew, Henry Lauder (curly) Filbrt, and Japanese Maple? (No evidence of infestation.) Our neighbors have a large old oak and several conifers. Are they endangered? Are annual chemicals a needed precaution? Which kind of borer does ours appear to be? It bores very deep into the wood; not just under the bark. I discovered it as I made some walking canes from prunings. Should I dispose of all the infested trees including the roots? Might any new shoots be treated and grown? Any advice is welcome.



Marion County Oregon

15 yr weeping cherry tree dead. Fungus or lantern fly #589474

Asked 2019-08-16 00:36:27

Our tree has a large trunk canker that an arborist id â˜d as fungus. (It is black and gooey). This spring produced beautiful and bountiful pink blooms. By mid July the leaves were turning brown in spots and now, the tree is completely bare/ dead. We have lantern flies. Do the lantern flies kill weeping cherry trees? Could it be a combination of both fungus and insects causing the very sudden demise? Thanks



Montgomery County Pennsylvania

17 year cicada damage to fruit orchard #379050

Asked 2016-12-05 16:09:20

This cottony "fungi" appeared on my Granny Smith apple tree and black cherry tree after the cicadas eggs hatched. What is this called and how can I treat the trees to minimize the damage. Thank you - you guys are great... Sandy



Westmoreland County Pennsylvania

1922 Peony bush #564676

Asked 2019-05-26 21:18:52

We have a very old peony bush in our back yard that has moss on it, is wilting in certain spots, didn't produce many flowers this year and generally needs to be pruned I think. I don't really know how to properly prune it and am afraid of killing it. Any suggestions would be appreciated.

Linn County Oregon

1st time pruning of 5 year old Pear tree #127108

Asked 2013-05-14 15:38:58

Does OSU have some literature on pruning Pear trees? At some point I really need to do some pruning. I've heard early spring is the right time (past and gone now). I also need information on spraying as our fruit gets wormy (probably too late now for that as well. What does Oregon extention service have to help me?

Washington County Oregon

1T Dawn
1 qt warm wate... #655476

Asked 2020-06-24 16:41:55

1T Dawn
1 qt warm water 
1T veg oil 1 
Mix.  Using this for bugs in garden.  Looks like very small black flea that jumps.
Seems spray may be killing veggie plants.  Any ideas, please?















Roanoke County Virginia

2 Crepe Myrtle. at least ... #135026

Asked 2013-06-18 12:37:41

2 Crepe Myrtle. at least 25 yrs. old. I notice half the branches are not sprouting leaves. they are dead. the other branches are sprouting. on one, there are grayest insects at base inside the bark. Plants have performed well until this spring. I am guessing they are diseased and termites have moved into one.

Prince George's County Maryland

2 headed cabbage #629158

Asked 2020-04-30 02:04:14

We have a cabbage that has formed 2 separate heads. We were told this is very uncommon. What is your take?

District of Columbia County Texas

2 of 3 trunks dead on a white birch #186236

Asked 2014-05-28 22:48:58

I am getting close to completion on the construction of a new home on a lot near the river in Moorhead.  The previous home was built in the early 90's and was removed as part of Moorhead's flood control buy-out program.  After the construction of the dike the city resold several lots and mine is one of these.  The lot has many trees, with several ornamental trees including a white birch tree with 3 trunks.  I assume it was planted at the time the original house was built as it is fairly large and mature.  However, it now appears only 1 of the 3 trunks is thriving.  One trunk has obviously been dead for some time as there are no branches on it.  I am certain the second dead trunk had leaves last year, but it is not budding this spring.




The new driveway has ended up very close to the tree (less than 2 feet from the edge of the concrete) and the tree roots were dug up on that side of the tree in order to pour the driveway (which was done just 2 days ago).  Over the course of construction, some branches of the tree were broken by the excavators/dump trunks.




My question is, should I attempt to keep the tree with a single healthy trunk or would it be wise to remove it now before final landscaping when it would be easy to pull the stump?  I would prefer to keep the tree, but it doesn't seem like a viable option.




I appreciate any help you can provide.

Clay County Minnesota

2 of these found in St. Cloud #329485

Asked 2016-06-06 23:29:13

Please help identify these insects



Stearns County Minnesota

2 out of 3 ain't bad #669079

Asked 2020-07-26 23:37:53

I planted 3 azaleas in May. 2 pink 1 white in the middle. The pink ones are thriving. The white one is not.



New Haven County Connecticut

2 questions 1. Ive been ... #619192

Asked 2020-03-27 18:16:23

2 questions 1. Ive been told that the spice bush is an understory bush and also that it needs full sun. Which is accurate? 2. Ive been growing swamp milkweed but have had a black and orange bug infestation the last several years. How best to deal with this? We have an organic butterfly and bee garden. To be honest, I'm ready to pull out the milkweed.

Summit County Ohio

2 questions both pertaini... #261448

Asked 2015-07-13 15:03:17

2 questions both pertaining to leaf problems on vegetables. The symptoms on a pepper plant problem is the leaves are turning brown but not falling off. The planets were planted in a raised garden plot with newly purchased soil. The raised bed is constructed of cedar material. Our weather is a little bit wetter than other years but I don't think it has been an extraordinary wet year. I should have asked more about how the leaves were turning brown, from the edges in or from the middle out, that might make a difference in the diagnosis. There were not any noticeable insects on the plants. The other leaf problem was on some cucumber plants. The plant vines look healthy but the leaves on the vines close to where the stems come out of the ground are turning yellow. These plants were planted in normal garden soil and were looking good until the leaves turned yellow. The fruit hasn't been affected by the leaf yellowing. In this situation there weren't any insects visible either.

Winona County Minnesota

2 questions re: money tree #289424

Asked 2015-11-09 04:17:44

Why does this plant produce a sticky syrup on its leaves? Am I supposed to braid the new growth?



Pima County Outside United States

2 years #605263

Asked 2019-11-03 18:44:34

Help my dogs are also bugged by them they get real sick when its hatching time what can I do to  help them they have little bear spots as big as a pencil around  were they hatch from and I've been having medical problems  in a d out of hospitals for 2 yrs +

El Dorado County California

2 years of seedlings being stunted #543242

Asked 2019-02-08 19:02:38

Hi,
The last couple of years the pepper and tomato seedlings for the garden have got to the cotyledon stage or one real leaf and stunted with no growth but they don't die.They barely grow when transplanted outdoors.I'm using t-5 florescent lights, how close should they be.Can a blast of cold air from leaving the door open cause this?I have a large indoor garden in the winter and have been fighting fungus knats the last few years, do they damage seedlings? The root growth in 2"x2" cells looks white but like a spider web and after 2 months the soil in the cell mostly just falls off of what little roots that are there when transplanting.I use seed starters with a water reservoir and a capillary mat.I use tobacco. Can Mosaic Virus stunt seedlings but not kill them?
                   Thanks for your thoughts on this,
                                    JV


                                            

Natrona County Wyoming

2-way pear: leaves do not fully open #637313

Asked 2020-05-18 16:57:08

My 3-way pear, planted earlier this spring, has leaves that do not want to open. See attached photos. The pear varieties are comice, anjou and bartlett. Linda Schield otf+osuex@focus421.com 541-343-1281



Lane County Oregon

20 year old English Boxwoods dying #122455

Asked 2013-04-19 02:27:44

I've had 2 side by side English boxwoods growing for almost 20 yrs. Slowly, one seems to be turning brown and parts are dying. I have to send each of my bowood pictures individually. Do you know how I can save it? Thank you.



Baltimore County Maryland

20 year old linden tree has a major problem: Help! #416732

Asked 2017-07-25 17:14:12

My linden tree has a problem: eaten leaves, sticky substance falling on cars parked under it and on the sidewalk; lots of lady bugs and I did see some1" wormlike bugs with a reddish horizontal stripe. Didn't see the worms today. I planted toe tree and do not want to lose it. Help!!!



Hennepin County Minnesota

200+ Year Old White Pine #588348

Asked 2019-08-12 16:05:03

I have a massive white pine on my shoreline on Bay Lake in Crow WIng County. It is ~8 ft diameter at the base and is about 10 feet from the shore, about 1.5 feet above water line. The sub-soil is sandy and is eroding in areas outside of this tree's root area. The bald eagles use it as a fishing roost so the top branches are a bit scraggly. The tree looks fairly healthy at this point, but I would hate to lose this tree so I want to do everything I can to improve its health. I notice a few holes in the bark where woodpeckers have been looking for bugs. Please let me know if I should be actively trying to control insects or fungus of any kind. I do not think lack of water can ever be an issue for this tree unless the lack falls significantly. It is still pretty high now. I can get a photo of the tree if that helps. Thank you very much!

Hennepin County Minnesota