Trees D - M
D
Daphne
Dogwood, Flowering
| Symptoms |
Probable Cause |
Bonide Best Solution |
| Leaves spotted; dieback; cankers |
Dogwood Decline; Anthracnose (fungus) |
Liquid Copper, Infuse,
Fungonil CR |
| Slow growth; pale foliage |
Root Competition |
Thin out neighboring trees |
| Small holes in bark and stems surrounded by sawdust; limbs girdled |
Dogwood Borers |
Annual Tree & Shrub, Borer/Miner,
Total Outdoor |
| Leaves and branches encrusted with small bumps; stunted plant growth |
Scale Insects |
Annual Tree & Shrub, BonNeem,
All Seasons CRS,
Total Outdoor |
| Leaves stunted; swellings on trunk/roots |
Canker (fungus) |
Copper |
| Flowers; leaves or twigs wilt |
Blight (fungus) |
Infuse, Fungonil CR |
| Bark of stems and roots gnawed |
Rodent Injury |
MoleMax G, Repels-All,
No Escape, Gopher Gassers |
| Young portions of foliage disappear, young tips disappear, bark peeled off |
Deer |
Repels-All CRG,
Deer/Rabbit R,
Hot Pepper Wax |
Dogwood, Kousa
Dogwood, Kousa
| Symptoms |
Probable Cause |
Bonide Best Solution |
| Leaves; growing tips shrivel |
Dieback (fungus) |
Fungonil CR |
| Irregular tan or brown spots on leaves at veins; expand until leaves die; sometimes sunken spots on leaves |
Anthracnose (fungus) |
Liquid Copper, Infuse,
Fungonil CR |
| Leaves stunted; swellings on trunk/roots |
Canker (fungus) |
Copper |
| Slow growth; pale foliage |
Root Competition |
Thin out neighboring trees |
| No blossoms |
Young, over fertilized/pruned |
Give the tree time to heal |
| Many holes in trunk and branches; small limbs girdled sawdust at holes |
Borers |
Annual Tree & Shrub,
Borer/Miner, Total Outdoor |
| Leaves and branches encrusted with small bumps; stunted plant growth |
Scale |
Annual Tree & Shrub, Eight CRS,
All Seasons CRS, Total Outdoor |
| Bark of trunk, stems; roots gnawed |
Rodents |
MoleMax G, Repels-All CRG,
No Escape, Gopher Gassers |
| Young portions of foliage disappear, young tips disappear, bark peeled off |
Deer |
Repels-All CRG, Deer/Rabbit R,
Hot Pepper Wax |
F
Fir, Balsam
Fir, Balsam
| Symptoms |
Probable Cause |
Bonide Best Solution |
| Needles wrinkle/curl/discolor/fall off |
Aphids |
Annual Tree & Shrub,
Eight CRS, All Seasons,
Total Outdoor,
Systemic Insect C |
| Black powdery sooty mold fungus forms on honeydew; branches may |
Ants Herding Aphids |
Eight CRS, TOTAL-Outdoor, Rotenone/Pyrethrin |
| Needles and buds eaten out; defoliation |
Spruce Budworm |
Systemic Insect C,
Total Outdoor,
Rotenone/Pyrethrin |
| Needles stippled/yellow/dirty/silken webbing |
Spruce Spider Mite |
Mite-X, Total-Outdoor,
Systemic Insect C,
All Seasons CRS |
| Needle tips yellowed |
Needle Cast (fungus) |
Infuse C, Fungonil CR |
| Cream colored blisters on needles in spring; young trees stunted |
Needle Rust (fungus) |
Liquid Copper |
| When young portions of foliage disappear, or young tips disappear |
Deer |
Repels-All CRG, Deer/Rabbit R,
Hot Pepper Wax |
Fir, Douglas
Fir, Douglas
| Symptoms |
Probable Cause |
Bonide Best Solution |
| Needles turn yellow |
Soil Too Alkaline |
Aluminum Sulfate, Iron Complex |
| Leaves or needles wrinkled or curled; discolored, stunted, tend to fall off |
Aphids |
Annual Tree & Shrub,
Eight CRS, All Seasons,
Bon-Neem, Systemic Insect |
| Black powdery sooty mold fungus forms on honeydew; branches may die |
Ants Herding Aphids |
Eight CRS, TOTAL-Outdoor, Rotenone/Pyrethrin |
| Needles; branches encrusted with bumps |
Scale |
Annual Tree & Shrub,
Eight CRS, All Seasons CRS, Total Outdoor |
| Twigs and roots damaged |
Weevil |
Annual Tree & Shrub,
Bon-Neem CR,
All Seasons CRS, Total Outdoor |
| Leaves chewed; tree defoliated |
Caterpillars |
TOTAL-Outdoor,
Systemic Insect C, Thuricide BT |
| Needles eaten, top of tree downward |
Tussock Moth |
TOTAL-Outdoor,
Systemic Insect C, Thuricide BT |
| New shoots fade, turn red; droop, needles drop |
Pine Shoot Borer |
Annual Tree & Shrub, Borer/Miner, Total Outdoor |
| One or more masses sticky cream, yellow, pinkish pitch; larva under masses |
Caterpillar Pitch Moth |
TOTAL-Outdoor,
Systemic Insect C, Thuricide BT |
| Needles and buds eaten out; defoliation |
Spruce Budworm |
Systemic Insect C,
Total Outdoor,
Rotenone/Pyrethrin |
| Needle tips yellowed |
Needle Cast (fungus) |
Fungonil CR |
| Orange; brown or yellow powdery masses on needles |
Rust (fungus) |
Infuse C, Fungonil CR, Copper |
| When young portions of foliage disappear, or young tips disappear |
Deer |
Repels-All CRG,
Deer/Rabbit R, Hot Pepper Wax |
Fir, White
Fir, White
 
| Symptoms |
Probable Cause |
Bonide Best Solution |
| Leaves or needles wrinkled or curled; discolored, stunted, tend to fall off |
Aphids |
Annual Tree & Shrub,
Eight CRS, All Seasons,
Total Outdoor,
Systemic Insect C |
| Black powdery sooty mold fungus forms on honeydew; branches may die |
Ants Herding Aphids |
Eight CRS, TOTAL-Outdoor, Rotenone/Pyrethrin |
| Leaves stippled, yellowing or bronze; dry out and drop may be webbing visible |
Spider Mites |
Mite-X, Total-Outdoor,
Systemic Insect C,
All Seasons CRS |
| Needles and buds eaten out; defoliation |
Spruce Budworms |
Systemic Insect C,
Total Outdoor,
Rotenone/Pyrethrin |
| Small bumps on leaves and stems |
Scale Insects |
Annual Tree & Shrub,
Bon-Neem CR,
All Seasons CRS,
Total Outdoor |
| Leaves consumed; conspicuous tawny egg masses present on trunk |
Caterpillar Of Gypsy Moth |
TOTAL-Outdoor,
Systemic Insect C,
Thuricide BT |
| Foliage looks bad, small silken bags hang from twigs |
Bagworms |
Systemic Insect C,
Eight CRSD, TOTAL-Outdoor |
| Needles and twigs discolored; stunted needle and twig |
Blight (fungus) |
Infuse, Fungonil CR |
| Needles discolored; drop prematurely |
Needle Cast (fungus) |
Fungonil CR |
| Girdling lesions on trunk and branches |
Canker (fungus) |
Copper |
| Bark of trunk and roots gnawed |
Rodent Injury |
MoleMax G, Repels-All,
No Escape, Gopher Gassers |
| When young portions of foliage disappear |
Deer |
Repels-All, Deer/Rabbit R |
H
Hemlock
Hemlock
| Symptoms |
Probable Cause |
Bonide Best Solution |
| Dead or dying lower branches |
Cultural Conditions |
|
| Foliage looks bad, white; cottony masses on branches |
Woolly Adelgid |
Bon-Neem, All Seasons |
| Major damage; branches and foliage eaten |
Deer |
Repels-All CRG,
Deer/Rabbit R, Hot Pepper Wax |
| Leaves stippled, yellow/bronze; dry out and drop, webbing visible; galls form on leaves |
Mites |
Mite-X, Total-Outdoor,
Systemic Insect C,
All Seasons CRS |
| Leaves and branches encrusted with small bumps; stunted plant growth |
Scale |
Annual Tree & Shrub,
Bon-Neem CR,
All Seasons CRS,
Total Outdoor |
| Foliage looks bad, silken bags hang on twigs |
Bagworms |
Systemic Insect C,
Eight CRSD,
TOTAL-Outdoor |
| When young portions of foliage disappear, or young tips disappear |
Deer |
Repels-All CRG,
Deer/Rabbit R,
Hot Pepper Wax |
M
Magnolia, Southern
Magnolia, Southern
| Symptoms |
Probable Cause |
Bonide Best Solution |
| Leaves and branches encrusted with small bumps; stunted plant growth |
Scale Insects |
Annual Tree & Shrub,
Bon-Neem CR, All Seasons CRS, Total Outdoor |
| Leaves spotted; drop prematurely |
Leaf Spot (fungus) |
Infuse, Copper, Fungonil |
| Brown spots on flowers; torn leaves |
Weather /wind |
Guard plant from weather |
| Leaves stippled yellow or bronze; dry out and drop; may be webbing visible |
Spider Mites |
Mite-X, Total-Outdoor,
Systemic Insect C,
All Seasons CRS |
| Weakened plant, leaves yellowed, flying dandruff when foliage disturbed |
Whiteflies |
Annual Tree & Shrub, Rote/Pyr,
All Seasons CRS, Total Outdoor |
| Holes in leaves |
Caterpillars |
TOTAL-Outdoor,
Systemic Insect C, Thuricide BT |
| Lesions on stems/trunk; foliage thins; dieback |
Fungal Disease |
Fungonil CR |
| Dead leaves matted together |
Leaf Blight (bacterial) |
Fungonil CR |
| Yellowing of foliage, gradual defoliation, plants may become stunted |
Verticillium Wilt (fungal) |
|
| Bark of trunk and roots gnawed |
Rodent Injury |
MoleMax G, Repels-All CRG,
No Escape, Gopher Gassers |
| Young portions of foliage disappear, young tips disappear, bark peeled off |
Deer |
Repels-All CRG, Deer/Rabbit R,
Hot Pepper Wax |
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