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What control measures should be taken when pathological changes occur in garlic scapes during storage?
Abnormal changes of the scape tip 1. Browning of the scape tip (1) Symptoms The scape tip changes from yellow-green to yellow-brown or dark brown, dehydrates and shrinks into a thin flake-like form, is prone to decay, and is easily infected by mold, losing its toughness; dry-affected ones break easily, and wet-affected ones rot easily and are infected by mold. (2) Causes The tissues of the scape tip undergo physiological aging and death, and lose water and shrink. High temperature and high oxygen promote browning, and high humidity aggravates the degree of browning. (3) Control Harvest at the proper time, and strictly prevent high temperature, air-drying, or smothering during harvest and transport.
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Through what pathways is wheat downy mildew transmitted?
How is wheat downy mildew transmitted? Wheat downy mildew is a fungal disease. The pathogen overwinters as oospores in the diseased residue of the host. When conditions are suitable, the oospores germinate and produce sporangia. The oospores and sporangia are spread by flowing water, germinate to produce zoospores, invade through the coleoptile and develop into hyphae, and the hyphae penetrate deep into the growing point of the young host...
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