Resistance breeding against the Barley Leaf Spot Complex Related

Strawberry Leaf Spot:: Photograph of a leaf affected by Mycosphaerella fragariae.

Light Leaf Spot:: Photograph and symptoms of this foliar disease of oilseed rape, its biology and advice on control measures.

Gray Leaf Spot of Corn:: Photographs of lesions, and information on this disease caused by the fungus Cercospora zeae-maydis, its symptoms, spread and management. [PDF]

Fabraea Leaf Spot of Pear:: I. Introduction: Susceptible pear cultivars affected by Fabraea leaf spot often are defoliated by midsummer, resulting in dwarfing of fruit and reduction of fruit buds. Infected fruit is worthless since it is usually cracked, disfigured, or misshapen. In the nursery, early defoliation and twig infection result in stunted growth of trees. II. Symptoms: Leaf spot can be found on petioles, leaves, shoots and fruits. Initial lesions on leaves are

Septoria Leaf Spot of Tomatoes:: Photographs of this disease, the symptoms, causal organism and control methods.

Alfalfa Leaf Spot, Pseudopeziza medicaginis:: Photograph of an affected leaf.

A Dispersion Model for Coastal Zones and Complex Terrain:: A description of the research program in the Mechanical Engineering Department at the University of Hong Kong that led to the development of a comprehensive air dispersion model for use in coastal zones and complex terrain such as exists in the Hong Kong area.

Hopper Mountain National Wildife Refuge Complex:: All four refuges were created primarily to protect and recover endangered and threatened species. Including the California condor, Western snowy plover, San Joaquin kit fox and more.

Arthropod Pesticide Resistance Database:: The database includes reports of resistance cases from 1914 to the present. It is freely searchable but only authorized users can submit a case to the database.

Herbicide Resistance Action Committee:: HRAC aims to facilitate the effective management of herbicide resistance by fostering understanding, co-operation and communication between industry, government and farmers.

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