Phytophthora root rot.

Blossom blighting from blueberry scorch virus.Blueberry shock ilarvirus can cause similarsymptoms. Photo courtesy of Dr. R. Martin, USDA, Corvallis, OR

Ladybirdbeetle—eggs.Photo courtesy ofD. Raworth, PARC

Ladybirdbeetle—larva.Feeds on aphids.

Ladybirdbeetle—adult.Feeds onaphids.Photo courtesy ofD. Raworth, PARC

Syrphid larva. Feeds onaphids, usually July andAugust.

Swollen shiny aphids containdeveloping parasites.

Flower Disorders

Root/Crown/SoilDisorders

Stem/FoliarDisorders

FruitDisorders

GrowthStages

Bud Break

Pink Tip

Green Berry

Bacterial blight infection ofnew buds (Pseudomonas sp.).May be associated with frostinjury.

Mummy berry.Infected flowerbuds producingsecondary spores(arrow) that willinfect open flowers.

Mummy berry. Infected fruit.

Botrytis infection of greenberry. Infection starts ondead flower which hasremained attachedduring wet weather.

Snail.

Anthracnose fruit rot. Close-up of orangespore masses. Photo courtesy of Dr. P. Bristow, WSU, Puyallup, WA

Alternaria fruit rot. Fruitsurface has a fuzzy,greenish-black mould.

Flagging symptom whichappears when the cane isgirdled. May be caused byGodronia canker, crowngall, weevil damage,bacterial blight ormechanical damage.

Mummy berryinfected leaf. Thefungus is producingsecondary spores(arrow) that willinfect open flowers.

Close-up ofGodroniacanker showingsmall blackpustules whichcontainnumerousspores.

Godronia canker, withtypical infections atleaf scars.

Spanwormcaterpillars. Feedinside bud, flowerand fruit clusters.Photo courtesy of S. Fitzpatrick,PARC

Natural Beneficials

Crown gall.

Bacterial blight(Pseudomonas sp.)infection on oneyear old wood.

Mummy berry. Mummies thathave dropped to the ground tooverwinter.

Mummy berry.Mummies producing cupswhich shoot primary sporesinto the air to infect openingbuds.

Aphids—immatures anda winged adult. Feed onunder surface of leaves.

Leafroller caterpillar.Found in rolled leaves.Photo courtesy of S. Fitzpatrick, PARC Actual size

Ground beetle. Feeds on weevilgrubs, leatherjackets, and slugs.Photo courtesy of D. Raworth, PARC

Actual size

Actual size to

Actual size

Weevil—adult and grub. Grubs feed on,and girdle roots. Photo courtesy of D. Raworth, PARC

Bloom

Ripe Berry

%

%

Girdling of crown caused byfield mice.

Lecaniumscale insectson twig.

Calyxcontaminant—spider egg sac.Photo courtesy of

S. Fitzpatrick, PARC

FruitContaminants

%

Actual size

Ministry of Agriculture and Foodsponsors

Blueberry Integrated Pest Management Poster

BLUEBERRY IPM