Strawberry Plasticulture - June 25, 2002
Volume 3, Number 50
E. Barclay Poling, Extension Strawberry Specialist
Preplant Meetings on web:
http://intra.ces.ncsu.edu/depts/hort/berrydoc/straw_preplant_meeting_2002.htm
Brief checklist for late June/early July:
- Now is the time to "plow under" strawberry plasticulture beds
to minimize the potential for anthracnose showing up on your farm in late
summer/fall
- Now is the time to order strawberry plants for plasticulture production:
plugs work best for most new growers
- Contact the NCSA, Inc. for the most up-to-date list of strawberry nursery
suppliers: "NC Strawberry Association" <ncstrawberry@mindspring.com>
- Now is the time to line up custom fumigators for the late summer - if
you are planting around Sept. 25, then you want to have your fumigation
completed in early August - for methyl bromide chloropicrin allow 2 weeks;
for Telone C-35 allow at least 3 weeks for plant back (interval from fumiagtion
to planting)
Questions from the field:
Dr. Poling,
We're ready to destroy our Chandlers soon and I'm wondering about Anthracnose
management. Like all other growers here (Virginia Beach), we were hit
with the big "A," though thankfully, not until we had passed
our "peak."
We do NOT have the option of rotating to different ground for our next
berry crop--we MUST re-use the same field. This being said, what, if anything,
can we do NOW or between now and bedding the soil for next year's berries?
Our usual routine is to kill the berries with Gramoxone (soon, I hope),
mow the plants off when "dead, " pull the plastic & drip,
then disk (often enough to keep weeds gone until time to bed-up in late
August to early September).
Please advise as to if there is anything else we should do to minimize
risk of Anthracnose next year. Thanks,
Tom
Tom & Anne Baker
Brookdale Farm
2060 Vaughan Road
Virginia Beach, VA 23457-1521
Reply: Tom and Anne, I cannot recommend any other specific steps at this time to reduce the anthracnose risk to next year's crop. The main issue is to do as exactly as you have outlined here in a timely manner.
Morning Barclay,
I have a question for you….what else can we do to kill these berries?
We have a field of young green leaves coming back out. They just won't
die!
Here's what we've done so far:
1) We mowed them down
2) We ran our drip irrigation to bring them back for about 3-4 days
3) We sprayed them using a John Blue ground driven sprayer with 3 pts.
Gramaxone and 6 pts. of surfactant per acre
4) We even killed them by the sign (in the heart) on the 15th, last Saturday…(just
in case that would help). HA.
Bob is going to try and spray again today if that is what is called for
so if you can, please let me know something as soon as possible.
Last year we chopped out every plant by hand…..I'm getting frowns
from everyone at a mention, of course it is over 90 degrees here!
Any other ideas?
Thanks,
Nancy Edwards
valleyhome@cafes.net
Reply: Nancy and Bob, I would possibly try using an approved crop oil concentrate with the paraquat. The NC Ag Chem Guide calls for 1 gal crop oil concentrate per 100 gallon spray solution. Your Gramoxone rate (3 pt) should have done the trick! I will ask David Monks and some other folks for additional input on why you are having such a tough time killing these back.
Busy week: I regret the briefness of this advisory, but this is one of those weeks where I am trying to be everywhere at once! I am going to be working with the Alabama growers this Thur/Fri on some of the problems that have been hampering their strawberry plasticulture industry this past year, and then I am going to escape to Vermont with my family for a week - back on July 8th and then the first preplant is July 9th in Rockingham Co.
E. Barclay Poling, Small Fruit Specialist
Campus Box 7609
Kilgore Hall - Office 252
NC State University
Raleigh, North Carolina 27695-7609
919.515.1195
919.515.2505 (fax)
919.418.9687 (mobile)
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