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Diagnosing Tree Problems DIAGNOSING TREE PROBLEMS Problems on Stems and Roots DIAGNOSING TREE PROBLEMS OF STEMS AND ROOTS and Roots Marion Murray IPM Project Leader Utah State University Extension Utah State University Extension Marion Murray IPM Project Leader Utah State University Extension

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Page 1: Problems on Stems...Problems DIAGNOSING TREE PROBLEMS Problems on Stems and Roots OF STEMS AND ROOTS ... Leaving wire baskets, burlap and ... RECAP OF DEAD BARK/DYING LIMBS PROBLEM

Diagnosing Tree Problems

DIAGNOSING TREE PROBLEMS

Problems on Stems

and RootsDIAGNOSING TREE PROBLEMS

OF STEMS AND ROOTS

and Roots

Marion Murray

IPM Project Leader 

Utah State University ExtensionUtah State University Extension Marion MurrayIPM Project Leader 

Utah State University Extension

Page 2: Problems on Stems...Problems DIAGNOSING TREE PROBLEMS Problems on Stems and Roots OF STEMS AND ROOTS ... Leaving wire baskets, burlap and ... RECAP OF DEAD BARK/DYING LIMBS PROBLEM

decline problemspholes in barkproblems of dead limbssudden tree death

Page 3: Problems on Stems...Problems DIAGNOSING TREE PROBLEMS Problems on Stems and Roots OF STEMS AND ROOTS ... Leaving wire baskets, burlap and ... RECAP OF DEAD BARK/DYING LIMBS PROBLEM

WHAT TO LOOK FOR IN TREE HEALTH

Tree vigorLeaf cover, leaf size, and condition

FlowersCompare to other similar treesLeaf cover, leaf size, and condition Compare to other similar trees

Page 4: Problems on Stems...Problems DIAGNOSING TREE PROBLEMS Problems on Stems and Roots OF STEMS AND ROOTS ... Leaving wire baskets, burlap and ... RECAP OF DEAD BARK/DYING LIMBS PROBLEM

TERMINOLOGY

Dieback vs. Decline

Page 5: Problems on Stems...Problems DIAGNOSING TREE PROBLEMS Problems on Stems and Roots OF STEMS AND ROOTS ... Leaving wire baskets, burlap and ... RECAP OF DEAD BARK/DYING LIMBS PROBLEM

WHAT CAUSES DIEBACK OR DECLINE?

Abiotic factorsInsectsFungiBacteriaViruses, MycoplasmasNematodes

Page 6: Problems on Stems...Problems DIAGNOSING TREE PROBLEMS Problems on Stems and Roots OF STEMS AND ROOTS ... Leaving wire baskets, burlap and ... RECAP OF DEAD BARK/DYING LIMBS PROBLEM

SITUATION:

STUNTED

GROWTH, OFF-GROWTH, OFF

COLOR

FOLIAGE, GRADUAL

DECLINE

Page 7: Problems on Stems...Problems DIAGNOSING TREE PROBLEMS Problems on Stems and Roots OF STEMS AND ROOTS ... Leaving wire baskets, burlap and ... RECAP OF DEAD BARK/DYING LIMBS PROBLEM

PLANTED TOO DEEP/BURIED

The problem:  roots are “smothered” due to lack of The problem:  roots are  smothered  due to lack of oxygen, and cannot grow

Page 8: Problems on Stems...Problems DIAGNOSING TREE PROBLEMS Problems on Stems and Roots OF STEMS AND ROOTS ... Leaving wire baskets, burlap and ... RECAP OF DEAD BARK/DYING LIMBS PROBLEM
Page 9: Problems on Stems...Problems DIAGNOSING TREE PROBLEMS Problems on Stems and Roots OF STEMS AND ROOTS ... Leaving wire baskets, burlap and ... RECAP OF DEAD BARK/DYING LIMBS PROBLEM
Page 10: Problems on Stems...Problems DIAGNOSING TREE PROBLEMS Problems on Stems and Roots OF STEMS AND ROOTS ... Leaving wire baskets, burlap and ... RECAP OF DEAD BARK/DYING LIMBS PROBLEM

COMPACTED SOIL(AND TOO DEEP)

a secondary problem of a secondary problem of compaction:  root disease caused by Phytophthora cactorumcactorum

Page 11: Problems on Stems...Problems DIAGNOSING TREE PROBLEMS Problems on Stems and Roots OF STEMS AND ROOTS ... Leaving wire baskets, burlap and ... RECAP OF DEAD BARK/DYING LIMBS PROBLEM

OVER OR UNDER-WATERING

Symptoms for both may be y p ysimilar:

thin crown

yellowing/scorchyellowing/scorch

leaf drop

dieback

Page 12: Problems on Stems...Problems DIAGNOSING TREE PROBLEMS Problems on Stems and Roots OF STEMS AND ROOTS ... Leaving wire baskets, burlap and ... RECAP OF DEAD BARK/DYING LIMBS PROBLEM

GIRDLING ROOTS

How They Happen:

Planting in a hole that is too small so the roots can not easily spread out.outPlanting container grown trees that have roots growing in a circular pattern. circular pattern. Planting a bare root tree by twisting roots to fit into a small hole. hole. Leaving wire baskets, burlap and any part of a container in the planting hole. planting hole. 

Page 13: Problems on Stems...Problems DIAGNOSING TREE PROBLEMS Problems on Stems and Roots OF STEMS AND ROOTS ... Leaving wire baskets, burlap and ... RECAP OF DEAD BARK/DYING LIMBS PROBLEM
Page 14: Problems on Stems...Problems DIAGNOSING TREE PROBLEMS Problems on Stems and Roots OF STEMS AND ROOTS ... Leaving wire baskets, burlap and ... RECAP OF DEAD BARK/DYING LIMBS PROBLEM

GIRDLING ROOTS - REMOVING

Expose girdled roots and remove as much topsoil as possibleUse a hand saw, chain saw or sawzall to remove roots up to 4 inches in diameter from around the crown of the tree.inches in diameter from around the crown of the tree.

Prevent girdled roots by 

loosening root balls and finding 

root collar during planting.

Page 15: Problems on Stems...Problems DIAGNOSING TREE PROBLEMS Problems on Stems and Roots OF STEMS AND ROOTS ... Leaving wire baskets, burlap and ... RECAP OF DEAD BARK/DYING LIMBS PROBLEM

ROOT ROT

Symptoms

Fungal fruiting structuresDead/loose barkCracks or seams in barkBleeding or oozeMissing rootsMissing rootsStunted growthOff‐color foliagegPattern in stand of trees

Page 16: Problems on Stems...Problems DIAGNOSING TREE PROBLEMS Problems on Stems and Roots OF STEMS AND ROOTS ... Leaving wire baskets, burlap and ... RECAP OF DEAD BARK/DYING LIMBS PROBLEM

ARMILLARIA ROOT ROT

Causal agent:  Armillaria ostoyaeg y

Hosts:  hundreds of species; conifers 

Page 17: Problems on Stems...Problems DIAGNOSING TREE PROBLEMS Problems on Stems and Roots OF STEMS AND ROOTS ... Leaving wire baskets, burlap and ... RECAP OF DEAD BARK/DYING LIMBS PROBLEM

ARMILLARIA

Page 18: Problems on Stems...Problems DIAGNOSING TREE PROBLEMS Problems on Stems and Roots OF STEMS AND ROOTS ... Leaving wire baskets, burlap and ... RECAP OF DEAD BARK/DYING LIMBS PROBLEM

ARMILLARIA – Honey Mushrooms

Page 19: Problems on Stems...Problems DIAGNOSING TREE PROBLEMS Problems on Stems and Roots OF STEMS AND ROOTS ... Leaving wire baskets, burlap and ... RECAP OF DEAD BARK/DYING LIMBS PROBLEM

ARMILLARIA – Mycelial Fan

Page 20: Problems on Stems...Problems DIAGNOSING TREE PROBLEMS Problems on Stems and Roots OF STEMS AND ROOTS ... Leaving wire baskets, burlap and ... RECAP OF DEAD BARK/DYING LIMBS PROBLEM
Page 21: Problems on Stems...Problems DIAGNOSING TREE PROBLEMS Problems on Stems and Roots OF STEMS AND ROOTS ... Leaving wire baskets, burlap and ... RECAP OF DEAD BARK/DYING LIMBS PROBLEM

RECAP OF DECLINE CAUSES

Planted too deep/buriedCompacted soilToo much or too little waterToo much or too little waterBound roots/girdling rootsRoot rotRoot rotCanker on main stemWrong tree for the siteg f

Page 22: Problems on Stems...Problems DIAGNOSING TREE PROBLEMS Problems on Stems and Roots OF STEMS AND ROOTS ... Leaving wire baskets, burlap and ... RECAP OF DEAD BARK/DYING LIMBS PROBLEM

SITUATION:

HOLES IN BARK

Page 23: Problems on Stems...Problems DIAGNOSING TREE PROBLEMS Problems on Stems and Roots OF STEMS AND ROOTS ... Leaving wire baskets, burlap and ... RECAP OF DEAD BARK/DYING LIMBS PROBLEM

BARK BEETLES – MOUNTAIN/WESTERN PINE BEETLE

Page 24: Problems on Stems...Problems DIAGNOSING TREE PROBLEMS Problems on Stems and Roots OF STEMS AND ROOTS ... Leaving wire baskets, burlap and ... RECAP OF DEAD BARK/DYING LIMBS PROBLEM

MOUNTAIN PINE BEETLEGALLERYGALLERY

Page 25: Problems on Stems...Problems DIAGNOSING TREE PROBLEMS Problems on Stems and Roots OF STEMS AND ROOTS ... Leaving wire baskets, burlap and ... RECAP OF DEAD BARK/DYING LIMBS PROBLEM

BARK BEETLES - IPS

Page 26: Problems on Stems...Problems DIAGNOSING TREE PROBLEMS Problems on Stems and Roots OF STEMS AND ROOTS ... Leaving wire baskets, burlap and ... RECAP OF DEAD BARK/DYING LIMBS PROBLEM

IPS ENGRAVER GALLERY

Page 27: Problems on Stems...Problems DIAGNOSING TREE PROBLEMS Problems on Stems and Roots OF STEMS AND ROOTS ... Leaving wire baskets, burlap and ... RECAP OF DEAD BARK/DYING LIMBS PROBLEM

SPRUCE BEETLE GALLERY

Page 28: Problems on Stems...Problems DIAGNOSING TREE PROBLEMS Problems on Stems and Roots OF STEMS AND ROOTS ... Leaving wire baskets, burlap and ... RECAP OF DEAD BARK/DYING LIMBS PROBLEM

BORERS – CLEARWING POPLAR

Page 29: Problems on Stems...Problems DIAGNOSING TREE PROBLEMS Problems on Stems and Roots OF STEMS AND ROOTS ... Leaving wire baskets, burlap and ... RECAP OF DEAD BARK/DYING LIMBS PROBLEM

BORERS – LILAC/ASH CLEARWING

Page 30: Problems on Stems...Problems DIAGNOSING TREE PROBLEMS Problems on Stems and Roots OF STEMS AND ROOTS ... Leaving wire baskets, burlap and ... RECAP OF DEAD BARK/DYING LIMBS PROBLEM

BORERS - SHOTHOLE

Page 31: Problems on Stems...Problems DIAGNOSING TREE PROBLEMS Problems on Stems and Roots OF STEMS AND ROOTS ... Leaving wire baskets, burlap and ... RECAP OF DEAD BARK/DYING LIMBS PROBLEM

BORERS - FLATHEADED

Page 32: Problems on Stems...Problems DIAGNOSING TREE PROBLEMS Problems on Stems and Roots OF STEMS AND ROOTS ... Leaving wire baskets, burlap and ... RECAP OF DEAD BARK/DYING LIMBS PROBLEM

SAPSUCKER WOODPECKER

Page 33: Problems on Stems...Problems DIAGNOSING TREE PROBLEMS Problems on Stems and Roots OF STEMS AND ROOTS ... Leaving wire baskets, burlap and ... RECAP OF DEAD BARK/DYING LIMBS PROBLEM

RECAP OF HOLES IN BARK

k b lBark beetles:• conifers• attack in large numbers; cause mortalityg ; y

Borers:h d d• hardwoods

• attack singly; cause localized damage

Sapsuckers/woodpeckers

Page 34: Problems on Stems...Problems DIAGNOSING TREE PROBLEMS Problems on Stems and Roots OF STEMS AND ROOTS ... Leaving wire baskets, burlap and ... RECAP OF DEAD BARK/DYING LIMBS PROBLEM

SITUATION:

DEAD BARK AND DYING LIMBS

Page 35: Problems on Stems...Problems DIAGNOSING TREE PROBLEMS Problems on Stems and Roots OF STEMS AND ROOTS ... Leaving wire baskets, burlap and ... RECAP OF DEAD BARK/DYING LIMBS PROBLEM

CANKERS

A sunken area of dead tissue on the inner wood and bark

Can be annual (pathogen active in one season, and usually kills host) or perennial (pathogen grows every year, and host produces callus tissue) y , o p o )

Page 36: Problems on Stems...Problems DIAGNOSING TREE PROBLEMS Problems on Stems and Roots OF STEMS AND ROOTS ... Leaving wire baskets, burlap and ... RECAP OF DEAD BARK/DYING LIMBS PROBLEM

CANKERS-Perennial

Page 37: Problems on Stems...Problems DIAGNOSING TREE PROBLEMS Problems on Stems and Roots OF STEMS AND ROOTS ... Leaving wire baskets, burlap and ... RECAP OF DEAD BARK/DYING LIMBS PROBLEM

CANKERS-Annual

Page 38: Problems on Stems...Problems DIAGNOSING TREE PROBLEMS Problems on Stems and Roots OF STEMS AND ROOTS ... Leaving wire baskets, burlap and ... RECAP OF DEAD BARK/DYING LIMBS PROBLEM

CANKERS

Causal agent:  Manyg y

Hosts:  hundreds of woody plant species

Symptoms:  gumming/oozing at cankered area, ke /de d b k  fl ki g/loo e b k  dieb k  sunken/dead bark, flaking/loose bark, dieback, 

epicormic branching 

Page 39: Problems on Stems...Problems DIAGNOSING TREE PROBLEMS Problems on Stems and Roots OF STEMS AND ROOTS ... Leaving wire baskets, burlap and ... RECAP OF DEAD BARK/DYING LIMBS PROBLEM

CANKERS-Apple Anthracnose (Pezicula malicorticis)

Page 40: Problems on Stems...Problems DIAGNOSING TREE PROBLEMS Problems on Stems and Roots OF STEMS AND ROOTS ... Leaving wire baskets, burlap and ... RECAP OF DEAD BARK/DYING LIMBS PROBLEM

CANKERS-Bacterial Canker (Pseudomonas sp.)

Page 41: Problems on Stems...Problems DIAGNOSING TREE PROBLEMS Problems on Stems and Roots OF STEMS AND ROOTS ... Leaving wire baskets, burlap and ... RECAP OF DEAD BARK/DYING LIMBS PROBLEM

CANKERS-Bacterial Canker (Pseudomonas sp.)

Page 42: Problems on Stems...Problems DIAGNOSING TREE PROBLEMS Problems on Stems and Roots OF STEMS AND ROOTS ... Leaving wire baskets, burlap and ... RECAP OF DEAD BARK/DYING LIMBS PROBLEM

CANKERS-Cytospora

Page 43: Problems on Stems...Problems DIAGNOSING TREE PROBLEMS Problems on Stems and Roots OF STEMS AND ROOTS ... Leaving wire baskets, burlap and ... RECAP OF DEAD BARK/DYING LIMBS PROBLEM

CANKERS-Cytospora

Page 44: Problems on Stems...Problems DIAGNOSING TREE PROBLEMS Problems on Stems and Roots OF STEMS AND ROOTS ... Leaving wire baskets, burlap and ... RECAP OF DEAD BARK/DYING LIMBS PROBLEM

CANKERS-Cytospora

Page 45: Problems on Stems...Problems DIAGNOSING TREE PROBLEMS Problems on Stems and Roots OF STEMS AND ROOTS ... Leaving wire baskets, burlap and ... RECAP OF DEAD BARK/DYING LIMBS PROBLEM

CANKERS-Cytospora

Page 46: Problems on Stems...Problems DIAGNOSING TREE PROBLEMS Problems on Stems and Roots OF STEMS AND ROOTS ... Leaving wire baskets, burlap and ... RECAP OF DEAD BARK/DYING LIMBS PROBLEM

MECHANICAL INJURY

Page 47: Problems on Stems...Problems DIAGNOSING TREE PROBLEMS Problems on Stems and Roots OF STEMS AND ROOTS ... Leaving wire baskets, burlap and ... RECAP OF DEAD BARK/DYING LIMBS PROBLEM

MECHANICAL INJURY

Page 48: Problems on Stems...Problems DIAGNOSING TREE PROBLEMS Problems on Stems and Roots OF STEMS AND ROOTS ... Leaving wire baskets, burlap and ... RECAP OF DEAD BARK/DYING LIMBS PROBLEM

FROST CRACK

Page 49: Problems on Stems...Problems DIAGNOSING TREE PROBLEMS Problems on Stems and Roots OF STEMS AND ROOTS ... Leaving wire baskets, burlap and ... RECAP OF DEAD BARK/DYING LIMBS PROBLEM

SUNSCALD/SOUTHWEST INJURY

Page 50: Problems on Stems...Problems DIAGNOSING TREE PROBLEMS Problems on Stems and Roots OF STEMS AND ROOTS ... Leaving wire baskets, burlap and ... RECAP OF DEAD BARK/DYING LIMBS PROBLEM

SUNSCALD/SOUTHWEST INJURY

Page 51: Problems on Stems...Problems DIAGNOSING TREE PROBLEMS Problems on Stems and Roots OF STEMS AND ROOTS ... Leaving wire baskets, burlap and ... RECAP OF DEAD BARK/DYING LIMBS PROBLEM

INTERNAL DECAY

Loose barkAbnormal swellings especially at base of treeFungus fruiting structures (conks)Stump sproutsStump sproutsBranch stubsCavities

Page 52: Problems on Stems...Problems DIAGNOSING TREE PROBLEMS Problems on Stems and Roots OF STEMS AND ROOTS ... Leaving wire baskets, burlap and ... RECAP OF DEAD BARK/DYING LIMBS PROBLEM

INTERNAL DECAY

Page 53: Problems on Stems...Problems DIAGNOSING TREE PROBLEMS Problems on Stems and Roots OF STEMS AND ROOTS ... Leaving wire baskets, burlap and ... RECAP OF DEAD BARK/DYING LIMBS PROBLEM

GALLS

Crown GallCausal agent:  Agrobacterium tumefaciens

Hosts:  hundreds of trees and shrubs including fruit trees

Page 54: Problems on Stems...Problems DIAGNOSING TREE PROBLEMS Problems on Stems and Roots OF STEMS AND ROOTS ... Leaving wire baskets, burlap and ... RECAP OF DEAD BARK/DYING LIMBS PROBLEM

A NOTE ON BURLS

Page 55: Problems on Stems...Problems DIAGNOSING TREE PROBLEMS Problems on Stems and Roots OF STEMS AND ROOTS ... Leaving wire baskets, burlap and ... RECAP OF DEAD BARK/DYING LIMBS PROBLEM

VERTICILLIUM WILT - CHRONIC

Causal agent:  Verticillium albo‐atrum or V. dahliae

Hosts:  wide variety:  maple, Hosts:  wide variety:  maple, ash, dogwood, linden, catalpa, magnolia, sumac, viburnum

Symptoms:  marginal yellowing of foliage; wilting during day/recovery at night; early fall day/recovery at night; early fall color; dieback; slow death

Page 56: Problems on Stems...Problems DIAGNOSING TREE PROBLEMS Problems on Stems and Roots OF STEMS AND ROOTS ... Leaving wire baskets, burlap and ... RECAP OF DEAD BARK/DYING LIMBS PROBLEM

RECAP OF DEAD BARK/DYING LIMBS PROBLEM

CankersCankersMechanical injuryFrost injuryFrost injurySunscald/Southwest injuryInternal decay fungiy gGallsWiltInsects

Page 57: Problems on Stems...Problems DIAGNOSING TREE PROBLEMS Problems on Stems and Roots OF STEMS AND ROOTS ... Leaving wire baskets, burlap and ... RECAP OF DEAD BARK/DYING LIMBS PROBLEM

SITUATION:

SUDDEN TREE

DEATH

Page 58: Problems on Stems...Problems DIAGNOSING TREE PROBLEMS Problems on Stems and Roots OF STEMS AND ROOTS ... Leaving wire baskets, burlap and ... RECAP OF DEAD BARK/DYING LIMBS PROBLEM

ROOT ROT - CROWN AND COLLAR ROT

Causal agent:  many species of Phytophthora, g y p y pincluding P. cactorum, P. megasperma, P. cambivora, and others

Hosts: apple, stone fruits, a variety of hardwoods

Symptoms: reduced vigor, leaf discoloration, small gfruit, oozing cankers at the base of the tree, discolored inner bark, death

Page 59: Problems on Stems...Problems DIAGNOSING TREE PROBLEMS Problems on Stems and Roots OF STEMS AND ROOTS ... Leaving wire baskets, burlap and ... RECAP OF DEAD BARK/DYING LIMBS PROBLEM

PHYTOPHTHORA

Page 60: Problems on Stems...Problems DIAGNOSING TREE PROBLEMS Problems on Stems and Roots OF STEMS AND ROOTS ... Leaving wire baskets, burlap and ... RECAP OF DEAD BARK/DYING LIMBS PROBLEM

PHYTOPHTHORA

Page 61: Problems on Stems...Problems DIAGNOSING TREE PROBLEMS Problems on Stems and Roots OF STEMS AND ROOTS ... Leaving wire baskets, burlap and ... RECAP OF DEAD BARK/DYING LIMBS PROBLEM

BARK BEETLES

Page 62: Problems on Stems...Problems DIAGNOSING TREE PROBLEMS Problems on Stems and Roots OF STEMS AND ROOTS ... Leaving wire baskets, burlap and ... RECAP OF DEAD BARK/DYING LIMBS PROBLEM

VERTICILLIUM WILT

Page 63: Problems on Stems...Problems DIAGNOSING TREE PROBLEMS Problems on Stems and Roots OF STEMS AND ROOTS ... Leaving wire baskets, burlap and ... RECAP OF DEAD BARK/DYING LIMBS PROBLEM

FIRE BLIGHT

Page 64: Problems on Stems...Problems DIAGNOSING TREE PROBLEMS Problems on Stems and Roots OF STEMS AND ROOTS ... Leaving wire baskets, burlap and ... RECAP OF DEAD BARK/DYING LIMBS PROBLEM

RECAP OF SUDDEN TREE DEATH CAUSES

Root rotRoot rotBark beetle attackWiltWiltFire blightHerbicide injuryj yChainsaw

Page 65: Problems on Stems...Problems DIAGNOSING TREE PROBLEMS Problems on Stems and Roots OF STEMS AND ROOTS ... Leaving wire baskets, burlap and ... RECAP OF DEAD BARK/DYING LIMBS PROBLEM

SAMPLE DIAGNOSISSAMPLE DIAGNOSIS

Page 66: Problems on Stems...Problems DIAGNOSING TREE PROBLEMS Problems on Stems and Roots OF STEMS AND ROOTS ... Leaving wire baskets, burlap and ... RECAP OF DEAD BARK/DYING LIMBS PROBLEM
Page 67: Problems on Stems...Problems DIAGNOSING TREE PROBLEMS Problems on Stems and Roots OF STEMS AND ROOTS ... Leaving wire baskets, burlap and ... RECAP OF DEAD BARK/DYING LIMBS PROBLEM
Page 68: Problems on Stems...Problems DIAGNOSING TREE PROBLEMS Problems on Stems and Roots OF STEMS AND ROOTS ... Leaving wire baskets, burlap and ... RECAP OF DEAD BARK/DYING LIMBS PROBLEM
Page 69: Problems on Stems...Problems DIAGNOSING TREE PROBLEMS Problems on Stems and Roots OF STEMS AND ROOTS ... Leaving wire baskets, burlap and ... RECAP OF DEAD BARK/DYING LIMBS PROBLEM
Page 70: Problems on Stems...Problems DIAGNOSING TREE PROBLEMS Problems on Stems and Roots OF STEMS AND ROOTS ... Leaving wire baskets, burlap and ... RECAP OF DEAD BARK/DYING LIMBS PROBLEM
Page 71: Problems on Stems...Problems DIAGNOSING TREE PROBLEMS Problems on Stems and Roots OF STEMS AND ROOTS ... Leaving wire baskets, burlap and ... RECAP OF DEAD BARK/DYING LIMBS PROBLEM
Page 72: Problems on Stems...Problems DIAGNOSING TREE PROBLEMS Problems on Stems and Roots OF STEMS AND ROOTS ... Leaving wire baskets, burlap and ... RECAP OF DEAD BARK/DYING LIMBS PROBLEM
Page 73: Problems on Stems...Problems DIAGNOSING TREE PROBLEMS Problems on Stems and Roots OF STEMS AND ROOTS ... Leaving wire baskets, burlap and ... RECAP OF DEAD BARK/DYING LIMBS PROBLEM

RECAP OF SAMPLE DIAGNOSIS

bli hCoryneum blightCytospora cankerFlatheaded appletree borerFlatheaded appletree borerPhytophthora collar rot

Page 74: Problems on Stems...Problems DIAGNOSING TREE PROBLEMS Problems on Stems and Roots OF STEMS AND ROOTS ... Leaving wire baskets, burlap and ... RECAP OF DEAD BARK/DYING LIMBS PROBLEM

utahpests.usu.edu

Page 75: Problems on Stems...Problems DIAGNOSING TREE PROBLEMS Problems on Stems and Roots OF STEMS AND ROOTS ... Leaving wire baskets, burlap and ... RECAP OF DEAD BARK/DYING LIMBS PROBLEM

IPM Advisories:

LandscapeTree Fruit

Small Fruit/VegetableTurf

To sign up:utahpests.usu.edu/ipm

Page 76: Problems on Stems...Problems DIAGNOSING TREE PROBLEMS Problems on Stems and Roots OF STEMS AND ROOTS ... Leaving wire baskets, burlap and ... RECAP OF DEAD BARK/DYING LIMBS PROBLEM

Marion Murrayj dIPM Project Leader

Utah State University

[email protected]‐797‐0776


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