Posts Tagged: sunflowers
Enjoying a tasty sunflower seed snack? Cooking with sunflower oil? Thank a California sunflower seed grower for producing the hybrid seed that's used for planting sunflower crops throughout the United States and the world, for confectionery and oil seed production.
California farmers grow about 70,000 acres of sunflower, mostly in the Sacramento Valley, for hybrid seed stock.
“We have perfect conditions for growing sunflowers, with hot, dry summers and plenty of good irrigation water for producing high quality seed,” says Rachael Long, UC Cooperative Extension farm advisor in Yolo, Solano and Sacramento counties. “We also have good pollination by honey bees and field isolation from wild sunflowers, needed for high yields and genetic purity of planting seed stock.”
Indeed, take a look at the lovely fields of sunflowers blooming in the summertime. Their striking show of bright yellow faces across the valley's vast agricultural landscapes elicit feelings of warmth and happiness.
“But don't stop there!” says Long. “Take a closer look at the fields and you'll see rows of plants with single large flowers alternating with rows of smaller plants with multiple flowers. Stalks with single flowers are female, smaller ones are male; cross pollination occurs by honey bees to produce the hybrid planting seed, harvested from the single female flowers.”
To assist farmers in producing hybrid sunflower seed crops, Long led a team of researchers to produce a new 2019 sunflower hybrid seed production manual for California. The manual provides information on production needs, such as irrigation and nutrient management, as well as a color guide to insect pests, diseases, and weeds of concern for hybrid sunflower seed production.
“In order to ship seed to worldwide markets, strict field certifications are in place to ensure that pests endemic to California are not spread elsewhere,” Long says. Weeds, insects and diseases growers should watch for are identified in the manual.
“Sunflower Hybrid Seed Production in California” is available for free download at https://anrcatalog.ucanr.edu/Details.aspx?itemNo=8638. In addition to Long, authors of the manual include UC Cooperative Extension farm advisors Sarah Light and Konrad Mathesius, retired USDA plant pathologist Thomas Gulya, UC Cooperative Extension irrigation specialist Khaled Bali, and emeritus UC Cooperative Extension soils specialist Roland Meyer.
“A special thanks to the sunflower seed industry and associate editor Dan Putnam, UC ANR agronomist at UC Davis, for their extensive contributions to this manual to make it a valuable resource for sunflower seed growers,” Long adds. “All of us are also grateful to UC ANR Communication Services for putting together a high quality publication!”
By day, they fly around our yard looking for the girls. At night, it's "Boys' Night Out." These males, longhorned digger bees, Melissodes agilis (as identified by native pollinator specialist Robbin Thorp, emeritus professor of entomology at UC Davis),...
These males are longhorned digger bees, Melissodes agilis, sleeping on a lavender stem. (Photo by Kathy Keatley Garvey)
A male longhorned bee, Melissodes agilis, stirs after the warmth of the sun awakens him. (Photo by Kathy Keatley Garvey)
Side view of male longhorned bee, Melissodes agilis. (Photo by Kathy Keatley Garvey)
Bees, butterflies and sunflowers at the California State Fair? Yes. The state fair, which opened July 12 and ends July 28, is a good place to see a bee observation hive, honey bees on sunflowers, carpenter bees on petunias, and butterflies in the...
Sunflowers grow as high as an elephant's eye at the California State Fair. (Photo by Kathy Keatley Garvey)
Beekeeper Doug Houck of the Sacramento Area Beekeepers' Association and his daugher, Rebekah Houck, at the beekeepers' booth in the Expo Center. (Photo by Kathy Keatley Garvey)
Butterfly specimens in the Insect Pavilion. (Photo by Kathy Keatley Garvey)
A female Valley carpenter bee working a petunia. (Photo by Kathy Keatley Garvey)
You can tell it's summer along Yolo County roads by the acres and acres of sunflower fields. Looking like real-life Van Gogh paintings (Van Gogh painted them in vases, Mother Nature paints them in rows), the sunflower fields are nothing short of...
Honey bees and a sunflower bee forage on a sunflower head. (Photo by Kathy Keatley Garvey)
Bee boxes line a sunflower field. (Photo by Kathy Keatley Garvey)
A spectacular sunflower field. (Photo by Kathy Keatley Garvey)
If you enjoy sunflowers--and the seeds and oil--thank a bee.Sunflowers, native to the Americas, are spectacular, especially when you encounter a field of them. If you look closely, you'll see honey bees, sunflower bees and bumble bees working the...