Yield losses in wheat from yellow rust infections are usually the result of reduced kernel number per ear and low weight ( Singh et al., 1986). Small grains are associated with low flour extraction rates (during milling), and low energy contents for Fig. Disease severity; On-line predicted maps. IMPORTANCE OF INSECT PESTS, DISEASES, WEEDS AND DISORDERS IN SEED PRODUCTION Introduction Since the beginning of agriculture almost 10,000 yrs ago, farmers/growers had to compete with harmful organisms. These include organisms such as pests, pathogens and Weeds. The pests include mites, aphids, nematodes.
![]()
The cereal grain wheat is subject to numerous wheat diseases, including bacterial, viral and fungal diseases, as well as parasitic infestations.
Principal diseases[edit]
In Europe[edit]
Cereals are at risk from numerous diseases due to the level of intensification necessary for profitable production since the 1970s. More recently varietal diversification, good plant breeding and the availability of effective fungicides have played a prominent part in cereal disease control. Use of break crops and good rotations are also good cultural control measures. The demise of UK straw burning in the 1980s also increased the importance of good disease control.
Active control measures include use of chemical seed treatments for seed-borne diseases and chemical spray applications for leaf and ear diseases. Development of resistance by diseases to established chemicals has been a problem during the previous 30 years.
In the USA[edit]
Wheat is subject to more diseases than other grains, and, in some seasons, especially in wet ones, heavier losses are sustained from those diseases than are in other cereal crops. Wheat may suffer from the attack of insects at the root; from blight, which primarily affects the leaf or straw, and ultimately deprives the grain of sufficient nourishment; from mildew on the ear; and from gum of different shades, which lodges on the chaff or cups in which the grain is deposited.
Fungicides[edit]
Fungicides used on wheat, grouped by type, with examples of the active chemical ingredient:
References[edit]
Further reading[edit]
External links[edit]
![]()
Retrieved from 'https://en.wikipedia.org/w/index.php?title=Wheat_diseases&oldid=916531503'
This article is a list of diseases of wheat (Triticum spp.) grouped by causative agent.
Bacterial diseases[edit]
Fungal diseases[edit]
Viral diseases[edit]
Phytoplasmal diseases[edit]
Nematodes, parasitic[edit]
References[edit]
Further reading[edit]![]()
Retrieved from 'https://en.wikipedia.org/w/index.php?title=List_of_wheat_diseases&oldid=919027387'
![]() Comments are closed.
|
AuthorWrite something about yourself. No need to be fancy, just an overview. Archives
December 2022
Categories |