12 Sfu 3-22-2023
12 Sfu 3-22-2023
12 Sfu 3-22-2023
SMALL FRUIT
UPDATE
2023
YOUR REGIONAL RESOURCE FOR:
Weekly
Edition Crop reports, industry news,
Small Fruit Update is
and pest management for
produced once a week berries across the Pacific
during the growing season
and bimonthly outside the Northwest.
growing season (Oct -
Feb)
DESIGNED BY ABBY C GEARING EDITED BY: JULIE POND & ELISA FORD
TABLE OF
CONTENTS
03
Commentary
04
Regional Reports
06
Blueberry Bud Development
08
Industry News
09
Industry Resources
10
Advertise with us
03Commentary
Julie Pond
BRITISH COLUMBIA 04 Regional Reports
Blueberries: Things here are moving slowly. Still not at the point where I see a need for
a mummyberry control spray. But after a warm weekend and the next two days getting
up to 15-17C(60F) there might be a push on vegetative development. Could get in for a
spray on the earliest fields this weekend. But otherwise I think we're into next week.
Still pruning going on, so a delayed spray requirement will ease that field complication.
OREGON
Washington Strawberries: Sounds like some Day Neutral Strawberries have some cold
damage in NW WA late last year. Not sure if they didn't shut down soon enough but
seemed significant in a few plantings.
Eastern WA blueberries: Plants are late bud swell in many of the earliest varieties.
Concern for cold damage (but no official damage reports yet) from the 9F cold and
strong winds last week. Otherwise the plants looked to have come through the winter
ok.
Oregon blueberries: Liberty and Legacy are late bud swell and are just coming into a
1/4 inch leaf tip stage. No mummyberry sightings as of yet but this is prime time now.
Blue Ribbon was tighter packed and no leaf emergence was noticed yet.
Critical Points
The optimum temperature for spore release and infection is 50°F to 57°F (10°C
to 14°C).
Typically when temperatures are over 45°F, that's when we enter the risk zone.
At least 12 hours of wetness is required for infection.
WE EK 12 : 3/ 17/ 23
PATRIOT BLUEJAY DUKE DRAPER TOP SHELF LIBERTY AURORA LAST CALL
WE EK 12 3/ 18 /2 2
PATRIOT BLUEJAY DUKE DRAPER TOP SHELF LIBERTY AURORA LAST CALL
WE EK 12 3/ 19 /2 1
PATRIOT BLUEJAY DUKE DRAPER TOP SHELF LIBERTY AURORA LAST CALL
WE EK 12 3/ 27 /2 0
PATRIOT BLUEJAY DUKE DRAPER TOP SHELF LIBERTY AURORA LAST CALL
INSECTS AND MITES
06
Pest Management
Caneberries
RASPBERRY CROWN BORER
If you've had borer problems in the past, March is the time to drench for crown
borer management in caneberries.
Southern Caneberries
STRAWBERRY CROWN MOTH
In Oregon and Southwest Washington, this borer looks to do as much, if not
more, damage in caneberries as the Raspberry Crown Borer. The treatment is the
same as for RCB- a spring (or fall) insecticide drench.
Southern Strawberries
CLAY COLORED WEEVILS
This early emerging species is usually just considered a pest of raspberries in
northern growing areas where it feeds on newly emerging shoots and buds. But in
the last few years, emerging adult Clay Colored Weevils have been recovered
from SW Washington southern strawberry fields and blueberry fields.
Blackberries
REDBERRY MITE
(Evergreen blackberries): Dormant sprays of lime/sulfur or elemental sulfur for
Blackberry Rust and Redberry Mite are recommended in March.
DISEASES
Raspberries
07
Crop Management
CANE BLIGHT
A good time to spot symptoms of cane blight is as the buds break. Infected canes
will show either no bud break if the cane has been girdled or one-sided bud break
if the infection is on one side. Scrape canes to look for rust colored streaks
usually coming up from machine harvester scars.
There is no treatment for cane blight once it’s present, only prevention. The time
to prevent next year's canes from getting infected is to apply an appropriate
fungicide immediately after harvest when fresh wounds normally become
infected.
Blackberries
BLACKBERRY RUST
(Phragmidium Rust) (Evergreen blackberries): Dormant spray of lime/sulfur or
elemental sulfur for Blackberry Rust and Redberry Mites is recommended in
March to prevent later problems.
PURPLE BLOTCH
Check for cane lesions that are easy to see as the weather warms but the foliage
has not yet emerged. It’s a good time to assess disease level.
Blueberries
Scout for Pseudomonas (Bacterial Canker). Water-soaked lesions usually appear
in February in some fields that then develop into reddish-brown to black cankers.
See the Northwest Center for Small Fruit Research on bacterial blight fact sheet.
08 Industry News
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A $50 gift card to Ace Hardware will be provided to a random individual who submits a completed
survey by March 31, 2023.
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Blueberries have joined green beans in this year’s Dirty Dozen list (CNN 3/15/2023)
Strawberry products sold at Costco, Trader Joe's, recalled after hepatitis A outbreak (NPR
3/18/23)
Amelie Aust promoted to Executive Chair of Fall Creek Board of Directors (FreshPlaza 3/21/23)
Frozen berries sold at Costco, Trader Joe's and other stores recalled due to possible hepatitis A
contamination. (CBS News, 3/17/23)
Frozen fruit recalled from Trader Joe's, Costco, and Aldi's Due to Hepatitis Outbreak (Food &
Wine, 3/20/23)
Updated - Scenic Fruit Company recalls frozen organic strawberries and frozen organic tropical
blend because of possible health risk (FDA.gov, 3/17/23)
Gresham fruit company issues recall for frozen strawberries, fruit mix sold at Costco, Trader
Joe's over Hepatitis A risk (KOIN.com, 3/20/23)
NORTH AMERICA
CROP MANAGEMENT
For New Blueberry Varieties, It’s Out With the Old and In With the Vigor
(Growing Produce 3/14/23) READ MORE
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March 2023 11 Industry Calendar
1 2 3 4
5 6 7 8 9 10 11
Produce Safety Alliance Grower 15th Annual Caneberry
Trainings Production Workshop
12 13 14 15 16 17 18
Plant a Flower Day Oregon Blueberry Washington Grower
Global Recycling
Commission Meeting Workshop
Day
19 20 21 22 23 24 25
World Agricultural Oregon Blackberry and
Day Raspberry Commission
Meeting
26 27 28 29 30 31
Farm Workers Day
Drone Demo
Oregon Blackberry and Raspberry Commission Meeting Washington Blueberry Commission Meeting
9am. Tualatin, OR. View agenda here. Time TBD. Mt. Vernon, WA. Email Alan for more information.
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