Fruit Trees
Apple grain aphid
Apple leaf miner

Apple measles on bark caused by low soil pH that induces either excessive manganese levels or deficient boron levels.

Prune plum with Boron deficiency

Fire blight of pear and apple
Spotted tentiform leafminer on apple tree
Spotted tentiform leafminer mines on apple leaf
Stink bug probing on pear fruit
Spirea aphids on apple trees are not exremely prolblematic
Nitrogen deficiency on fruit trees causing leaf drop.
Apple bitter rot on fruit

Fungal fruitApple bitter rot (Glomerella) close up
Apple bitter rot on leaf

Apple bitter rot on fruit

Apple with European red mite on leaf

Apple fruit tree leaf roller

Apple calcium deficiency appears as slightly sunken round blemishes, more numerous at blossom end.

Apple cold temperature injury at fruit set
Apple bitter rot caused by glomerella fungus

Apple hail damage to young fruit

Apple damaged by plum curculio

Apple with fruit russeting caused by crop protection chemicals

Apple fruit with frost damage

Pear with phytotoxic ring caused by crop protection chemicals

Cherry tree trunk with sunken canker probably due to winter injury

Sweet Cherry leaves showing severe nitrogen deficiency, possibly indicating trunk or root damage.
Peach shoot showing serious nitrogen deficiency, possibly indicating root or trunk injury.

Cherry tree trunk rot which caused tree decline

Cherry fruit abortion at 4 weeks caused by cold temperature or chemicals

Cherry stunt and leaf roll possibly caused by a virus

Cherry wood rot caused by Milk-white Toothed Polypore fungus

Cherry wood rot fungus

Apple fire blight

Peach tree trunk with cytospora canker

Peach with bacterial leaf spot

Peach tree limb showing brown Cytospora canker infection, which has been excised back to healthy tissue

Peach leaf with chemical phytotoxicity

Peach tree die-back from planting too deeply

Peach tree foliar toxicity

Pear fruit with stony pit virus damage on fruit

Plum tree branch with black knot lesion. Cherry trees are also susceptible.

Plum blossoms damaged by frost 10 days before full bloom

Prunus stem pitting virus symptoms at the bud union

Apple leaf necrosis from unknown cause-- possibly dormant oil or other crop protection chemical

Apple branch cankering and die-back of unknown causes-- possibly virus or graft incompatibility; secondary colonization by black rot and white rot fungi

Cherry Leaf Spot (fungal conidia on lower leaf surface)
Cherry Leaf Spot defoliation in mid-summer

European Fruit Lecanium Scale

Bacterial Spot on leaves and resulting of cracks on fruits.

Fire Blight of apple and pear

Prunus Stem Pitting caused by Tomato Ringspot Virus on peach
Peach Canker caused by fungus Cytospora.

Stony Pit Virus of Pear

European Apple Sawfly (oviposition scar)
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