With a little welcome rain sweeping across the
Valley in the past week, farmers are pretty much moving into winter mode.
Field scout Carlos Silva spotted a few stragglers
wrapping up their alfalfa and cotton harvest in the past couple weeks. The
forecast of rain last week – you remember the wet stuff coming from the sky –
spurred them to get moving on their last cutting of alfalfa and picking of
remaining cotton.
Rootknot nematodes can hit almond orchards. |
Unlike
bears, though, farmers won’t be going into hibernation for the winter. There
are plenty of chores ahead as growers prepare for the next season.
In the almond orchards, for example, some growers
are performing nematode soil sampling in orchards that lacked vigorous growth
during the season. Rootknot nematodes can be a pesky problem because they can
cause knots to form on the roots, leading to reduced tree productivity. Post-harvest
also is a time to monitor for diseases and weeds, UC IPM says.
Alfalfa growers now looking out for weeds. - UC IPM photo |
From
now until January, alfalfa growers will be surveying for weeds and comparing
the results to last year’s records. Annual winter weeds often grow faster than
fall planted alfalfa seedlings. The surveys will help growers develop a weed
management strategy such as grazing or overseeding with grasses. They also will
be looking for signs of vertebrates and monitoring for weevils during the
winter, according to UC IPM’s year-round
plan for alfalfa.
For
cotton growers, the most important task after harvest is shredding, uprooting
and plowing under plant stocks to comply with state plowdown regulations. Plowdown
prevents bollworm infestation and plant regrowth and minimizes additional build
up of white flies. UC experts also advises growers to maximize the time between
harvest and planting white fly host crops.
A grower plows down cotton stalks after the fiber is harvested. |
Each fall,
county agricultural commissioners will issue a deadline for all the cotton
fields to be plowed down. County ag officials are required by state law to
enforce plowdown rules and a host-free period for the pink bollworm. While
cotton acreage has slipped in recent years, the crop remains an importance
piece of the local farm economy. In Fresno County, cotton has ranked among the
top 10 crops economically. Remember, California produces about 90 percent of
the nation’s coveted, high-quality pima variety.
State-required plowdown controls pink bollworm in cotton. |
Here’s
how the Fresno County ag commissioner’s office says about the importance of
cotton plowdown: “Pink bollworm is a pest that destroys cotton by burrowing
inside unopened bolls. This type of larval damage prevents the cotton lint from
developing correctly. These larvae can overwinter in the stalks of cotton
plants. In order to have a host-free period, cotton must be plowed down (by a
set date) … and planting cannot begin until March 10 of the following year.”
Ask any grower and he or she will tell you
farming is a 24/7 job – year-round. There is little time for rest – except
during Thanksgiving and the winter holidays. You can be certain farmers will be
enjoying their turkey dinner.