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Cooperative Extension at Highmoor Farm


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Growers Twilight Meeting – June 11, 2014

GROWERS TWILIGHT MEETING

Wednesday, June 11, 2014
5:30 p.m.
Fairwinds Farm across from 555 Brown’s Point Road, Bowdoinham, Maine 04008
Tel. 207.522.5064
Cost:  Free
No registration is required.

The University of Maine Cooperative Extension and the Maine Vegetable and Small Fruit Growers Association will hold a twilight meeting at Fairwinds Farm in Bowdoinham on Wednesday, June 11, 2014 at 5:30 p.m.

Hosts Pete and Cathy Karonis grow 10 acres of strawberries and approximately 40 acres of mixed vegetables in fields along the Kennebec River and have a farm stand and greenhouses in Topsham. They will host a tour of their strawberry, raspberry and vegetable plantings, and describe their growing and marketing.

There will be a discussion of the upcoming season for vegetable and berry growers, and pest management strategies for the season ahead with Vegetable and Small Fruit Specialist, David Handley and Vegetable Specialist, Mark Hutton. One pesticide applicator recertification credit will be awarded for attending the meeting.

Fairwinds Farm is located across the road from 555 Brown’s Point Road, Bowdoinham 04008. (Use for GPS reference.) We’ll meet at the strawberry fields. Their phone numbers are 207.522.5064 and 207.522.0246 and their email address is fairwindsfarm08@gmail.com. Signs will be posted. Cost for the meeting is free and no registration is required. For more information, please contact David Handley at 207.933.2100 or david.handley@maine.edu. We hope to see you there!

Directions
From I-295, take Exit 37. Turn east towards Bowdoinham onto Route 125/138 South. Travel 1.4 miles to the stop sign, then turn left onto Route 24 North/River Road. Travel 0.7 mile and turn right onto Brown’s Point Road. Go 2.6 miles (road veers to the right and becomes a dirt road) and the farm is on the left.

Any person with a disability who needs accommodations for this program should contact Pam St. Peter at 207.933.2100 or TDD 1.800.287.8957 to discuss their needs at least 7 days in advance.

Strawberry IPM Newsletter No. 3 – June 6, 2014

Strawberry IPM Newsletter No. 3 – June 2014

Click on photos to enlarge.

STRAWBERRY GROWTH SLOW BUT STEADY AS HARVEST APPROACHES

Clippers, Tarnished Plant Bugs, and Spider Mites Active

Vegetable and Berry Growers Twilight Meeting
Wednesday, June 11, 2014 at 5:30 p.m.
Fairwinds Farm, Bowdoinham, Maine

Situation: The temperatures have remained fairly cool with more damp, cloudy days and, as a result, strawberry development has been relatively slow but steady as we head towards harvest time. A later start may be a good thing for pick-your-own fields, as it will better coincide with the end of the school year; but a few days of warm weather would really speed development. Most early varieties are now in the small green fruit stage, while later varieties are still in bloom. Early fields that started under row covers may be picking a few fruit next week.

Twilight Meeting
The University of Maine Cooperative Extension and the Maine Vegetable and Small Fruit Growers Association will hold a twilight meeting at Fairwinds Farm in Bowdoinham on Wednesday, June 11 at 5:30 p.m. Pete and Cathy Karonis grow 10 acres of strawberries and approximately 40 acres of mixed vegetables in fields along the Kennebec River and have a farmstand and greenhouses in Topsham. They will host a tour of their strawberry, raspberry and vegetable plantings, and describe their growing and marketing practices. In addition, we’ll discuss the upcoming season and pest management issues facing vegetable and berry growers this year. One pesticide applicator recertification will be awarded for the meeting. Hold the date! We’ll meet at the strawberry fields in Bowdoinham.

From I-295, take Exit 37. Turn east towards Bowdoinham onto Route 125/138 South. Travel 1.4 miles to the stop sign, then turn left onto Route 24 North/River Road. Travel 0.7 mile and turn right onto Brown’s Point Rd. Go 2.6 miles (road veers to the right and becomes a dirt road) and the farm is on the left, across from 555 Brown’s Point Road. (Use this address for GPS reference. Signs will be posted.) Their contact information is: tel. 207.522.5064 or 207.522.0246, email fairwindsfarm08@gmail.com.

Strawberry bud weevil or “clipper” is still working in fields of late varieties that still have lots of unopened flower buds. Fields that have reached full bloom or beyond no longer need to be scouted for clipper. Damage in most fields remains fairly light, as early varieties went into bloom before clipper became very active. Three of the fields scouted this week were just over threshold for clipped buds, and clippers have been observed in other fields where the damage had not yet reached threshold.

Reminder to raspberry growers: Strawberry clipper will move onto raspberry buds after strawberry bloom. Check raspberry flower clusters for clipped buds and live clippers. Insecticide sprays to control raspberry fruit worm adults (which are also active at this time) should provide some control of clipper as well. Products registered for clipper on raspberries include Brigade®, Sevin XLR Plus® and Aza-Direct®.

Tarnished plant bug nymphs were over threshold in two fields scouted this week, but most fields still showed very little tarnished plant bug activity. However, it is important to keep scouting for nymphs throughout the bloom period because they can appear very quickly under warmer, drier conditions. Insecticide options for tarnished plant bug include malathion, Assail®, Brigade®, Bifenture®, Danitol®, and PyGanic®.

Strawberry rootworm (not root weevil) adults and feeding injury were reported on strawberry plants last week The adult stage of this insect is a small (1/8”) dark brown beetle. The beetles feed on strawberry leaves during the spring and late summer, causing numerous small holes in the leaves. The adults in fields now will soon lay eggs. The larvae are small grubs that feed on the roots of strawberry plants, causing them to be stunted and weak.  If these beetles and/or feeding injury is prevalent in a field, a treatment is recommended. Sevin 50WP® is registered for control of this pest, and sprays targeted at other insect pests at this time may also control rootworm. Strawberry rootworm should not be confused with root weevil, a larger insect that causes much more serious damage when present in a field.

Two-spotted spider mites were over the threshold (25% of leaves infested) in two locations this week, and smaller populations (under threshold) have been found in most fields. Mites can proliferate rapidly under hot, dry conditions, so it is important to scout for them often. Chemical control options for two-spotted spider mites include Acramite®, Savey®, Zeal®, Vendex®, Oberon®, Brigade®, Danitol®, Thionex® and JMS Stylet oil® (oils will cause plant injury if used in combination with captan or within 14 days of an application of sulfur).

Cyclamen mites:  Two more fields we’ve scouted have shown symptoms of cyclamen mite injury this week. Infested plants show weak growth and yellow, crinkled leaves. The flower stems are small and short and the petals are deformed and sometimes look pink.  Cyclamen mites are very hard to see, even with magnification. Portal®, Kelthane® or Thionex® can be effective, but must be applied in lots of water to be sure that the material is carried down into the crowns where these mites reside.

Spittlebugs: The frothy spittle masses on the leaf and flower stems from spittlebugs usually show up around bloom. Spittlebugs don’t pose a significant threat to the plants, but the spittle masses are a nuisance for pickers. Spittlebugs overwinter as eggs and the nymphs emerge in late May. Scouting for spittlebugs should start when the plants are at 10% bloom. Randomly inspect five, one square foot areas per field every week. Spread the leaves and inspect the crowns, leaf bases, leaf stems, and flower stems looking for the frothy spittle masses. Small, yellow-orange nymphs will be under the spittle. If the average number of spittle masses is more than two per foot, a treatment may be warranted. Spittlebugs tend to be a greater problem in weedy fields. Pesticides currently registered for spittlebug control include Provado®, Thionex®, Danitol® and Brigade®.

Diseases: The conditions have been wet enough in most fields to encourage Botrytis infections, which will lead to gray mold once the fruit start to ripen. Two to three sprays of fungicide during bloom are usually required to provide good protection against this disease.

Leather rot (Phytopthora cactorum) is still a concern for fields which have had long periods of standing water during this wet spring, especially if the fields were not mulched last fall. Fungicides applied for gray mold are generally not effective for leather rot. Foliar sprays of Aliette®, Agri-Phos® or Phostrol® applied during bloom or fruit development can help prevent leather rot.

Anthracnose fruit rot is a potential problem when fruit ripens in fields that are wet from irrigation or rain. This fungus disease is favored by warm, humid conditions and can spread rapidly during rains or when fields are irrigated with overhead sprinklers. In cool seasons, it may appear close to harvest or may not show up at all. Anthracnose fruit rot is identified by black sunken lesions with wet, orange (and sometimes gray) spore masses in them. The fungus can survive and multiply on leaves without visible symptoms, appearing suddenly as a fruit rot when the conditions are right. Fungicides such as Cabrio® and Abound® can provide good control of anthracnose.

Powdery mildew symptoms of this fungus disease have just started showing up in fields this week. As the weather warms up expect it to become more prevalent. Mildew may first appear as purple or red streaks on the leaf and flower stems. Later, upward curling leaves and white, powdery growth on the undersides becomes evident. Keep an eye out for leaf cupping in your fields as the days start to get warmer.  Pristine®, Cabrio®, Topsin-M®, captan, Procure®, Torino® and JMS Stylet oil® are registered to control powdery mildew.

Sincerely,

David T. Handley
Vegetable & Small Fruit Specialist

Highmoor Farm                       Pest Management
P.O. Box 179                              491 College Avenue
Monmouth, ME  04259         Orono, ME  04473
207.933.2100                           1.800.287.0279

Maine Cooperative Extension, the Land Grant University of the state of Maine and the U.S. Department of Agriculture Cooperating.  Cooperative Extension and other agencies of the U.S.D.A. provide equal opportunities in programs and employment.  A Member of the University of Maine System.

Where brand names or company names are used it is for the reader’s information. No endorsement is implied nor is any discrimination intended against other products with similar ingredients. Always consult product labels for rates, application instructions and safety precautions. Users of these products assume all associated risks.

Image Description: Strawberries

Image Description: Clipper Damage on Strawberry Plant

Image Description: Large Tarnished Plant Bug Nymph

Image Description: Strawberry Rootworm Beetle

Image Description: Spittlebug

Image Description: Powdery Mildew

Airblast Sprayer Calibration Clinic and Twilight Meeting – May 21, 2013

The University of Maine Cooperative Extension and the Maine Vegetable & Small Fruit Growers Association will hold a sprayer calibration clinic for airblast sprayers at David Pike’s Farm to You in Farmington on Tuesday, May 21 at 2:00 p.m – RAIN OR SHINE.  George Hamilton with the University of New Hampshire Cooperative Extension will demonstrate new tools for making sure your sprayer is delivering the correct rate of pesticides to your crops.  Having a sprayer properly calibrated will improve the effectiveness of your sprays, and can save you money by reducing the amount of pesticide used and reducing crop losses due to pests.  Participants will receive two pesticide applicator recertification credits.

The calibration clinic will be followed at 5:00 p.m. by a tour of David Pike’s strawberry and vegetable fields.  David has been a leader in innovative strawberry production techniques, including raised beds, plastic mulch, fertigation, fall cropping, and season extension.  There will be some new low tunnel technology on display, as well as replant experiments and new varieties on trial.  One pesticide applicator recertification credit will be awarded for the meeting.

Pike’s Farm to You is located at 115 Mount View Road (near the corner of Routes 2 & 4 and the Whittier Road) in Farmington, Maine 04938.  There will be signs posted.  The farm phone number is 207.778.2187.  Cost for the clinic is free and no registration is required.  For more information, please contact David Handley at 207.933.2100 or david.handley@maine.edu.

Any person with a disability who needs accommodations for this program should contact Pam St. Peter at 207.933.2100 or TDD 1.800.287.8957 to discuss their needs at least 7 days in advance.


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University of Maine Cooperative Extension


Contact Information

Cooperative Extension at Highmoor Farm
52 U.S. Route 202
Monmouth, Maine 04259-0179
Phone: 207.933.2100
The University of Maine
Orono, Maine 04469
207.581.1110
A Member of the University of Maine System