Root irrigation and foliar spray can prevent Fusarium wilt
Fusarium wilt (blight) is also called blight. A plant disease caused by fungi or bacteria that occurs suddenly and includes severe spots, wilting, or death of leaves, flowers, fruits, stems, or whole plants. Fast-growing young tissues are often invaded. Most important cash crops are infected by one or more diseases. Blight can affect flowers, leaves, buds, seedlings, twigs, stems (vines) and top shoots.
The pathogen causing Fusarium wilt generally invades the plant directly from the root wound or root sheath and propagates in large numbers in the vascular bundles at the root and stem base, resulting in vascular bundle blockage, so that water and nutrients can not be transmitted up and down, resulting in wilting and death. The browning of vascular bundles of roots and stems is a common feature of Fusarium wilt of all kinds of crops.
Because Fusarium wilt is caused by bacteria blocking rhizome vascular bundles, the combination of root irrigation and foliar spray can be used in chemical control. Root irrigation can make the fungicides be absorbed from the roots and transmitted upward, and foliar spray can make the fungicides be absorbed from the foliage and then transmitted downwards, and the pathogens can be attacked on both sides.
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