Adult singles dating sunflower mississippi
For plant architecture, sunflowers changed from multiple to a single head, from branched to a single stem and from small to large seeds.
The growth phenology also changed from variable emergence and extended periods of flowering in the wild type sunflower to discrete emergence and a short flowering period in cultivated sunflower.
Tarnished plant bugs (Lygus spp.) also have been an economic problem for the confection and hulling sunflower seed market.
Populations of the Dectes stem borer (Dectes texanus Le Conte) have been increasing in South Dakota and North Dakota.
These potential risks require that growers follow integrated pest management (IPM) practices.
In the major sunflower-producing areas of the Dakotas, Minnesota and Manitoba, approximately 15 species of insects can cause plant injury and economic loss to sunflowers, depending on the severity of infestation.
The concept of IPM is based on the fact that many factors interact to influence the abundance of a pest.