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1975年,在澳大利亚主要葡萄栽培地区首次发现一种葡萄黄花病。症状几乎与法国的葡萄金黄类菌质体病相似,叶变黄、向下卷曲、过早脱落。新梢矮化、非木质化。从开花起,花束随时可能萎缩和脱落。该病主要发生在温暖的内陆地区和在栽培品种 chardonnary、Rhine Riesling 上。虽然 De chaunac 也受危害,但每株用有效浓度0.05g 的盐酸土霉素注射休眠葡萄树,在来年能减少97%的症状,并能持续五个季节有效。当每株用0.005g 有效浓
In 1975, the first grape yellow flower disease was found in the major viticulture areas of Australia. Symptoms are almost similar to those of the grape golden-like bacterioplankton in France, with the leaves turning yellow, curling downward and falling off prematurely. New shoot dwarf, non-lignified. From flowering, the bouquet may shrink and fall off at any time. The disease occurs mainly in the warm inland areas and on cultivars chardonnary, Rhine Riesling. Although Dechaunac is also endangered, the injection of dormant vines with an effective concentration of 0.05 g of oxytetracycline hydrochloride per plant reduced the symptoms by 97% in the coming year and continued for five seasons. When each plant with 0.005g effective concentration