• Pomegranate bacterial blight

  infection. Disease cycle Infected cuttings are the main source of inoculum and wind splashed rains plays important role is spread of the disease. Intermittent

• Apple scab

  weather, mature ascospores are released from the pseudothecia and carried by wind to newly emerging leaves, blossoms, and developing fruit. Infection occurs [...] or fruit, the fungus produces conidia that are spread by rain splash and wind. Under favorable conditions, multiple secondary infection cycles can occur

• Powdery mildew

  the stomata. Conidia are the main means of dispersal. They are dispersed by wind, as are the ascospores. In general, powdery mildew fungi are not very resistant [...] but inhibits spore production, so the net effect of the RH is very small. Wind and draught in greenhouses promote disease. In greenhouses, dispersal of

• Diamond back moth

  universally distributed lepidopteran species. It is highly migratory and wind-borne adults can travel long distances to invade crops in other regions. [...] 13 to 35 m within a crop field, however, they are readily carried by the wind and as such can disperse 400 to 500 km per night.

• Black sigatoka disease

  lla fijiensis ) produces both ascospores and conidia. The ascospores are wind-dispersed over longer distances, the conidia are splash-dispersed within

• Leaf stripe

  seedling. Conidia are produced on the infected leaves when humidity is high and wind-dispersed to neighbouring ears where they can infect seeds at any stage up

• Crazy roots, hairy roots, crown gall

  which break open, releasing many bacteria. These are dispersed by rain and wind and by humans and tools. Until now, no bacteria have been isolated from crazy

• Blight of pepper

  n on above-ground plant parts, leaf wetness is required. Dispersal is by wind and rain causes the pathogen to be returned to the soil from infected plants

• Early blight

  Infection is both direct and through wounds and stomata. Spores are dispersed by wind and in some species through the splash of rain. How to prevent Early blight

• Woolly apple aphid

  mainly spread through young, wingless nymphs which crawl or are blown by the wind from tree to tree. Sometimes a few winged aphids are produced in summer.