Who will shake the dominance of 80% mancozeb WP on citrus? From the promotion of citrus products in 2016, pyraclostrobin will surpass triazoles, mancozeb, and become a new citrus "overlord". Although its similar compounds, oxystrobin and azoxystrobin, also have good performance in citrus, but because of the different focus of the manufacturers and channels on the compounds, and the promotion of the continuation of follow-up abroad, the oxystrobin and azoxystrobin in citrus There is little promotion or no weather. However, since the domestic market of pyraclostrobin, the situation is very different. Pyraclostrobin has almost blossomed everywhere, and some manufacturers have gradually promoted to the citrus.
At present, the main economic varieties of domestic citrus economic value are Guangdong, Guangxi, sugar orange, Gonggan, Nanfeng tangerine, Shatian pomelo, Sichuan ugly orange, navel orange, Zhejiang's Huyou, Jiangxi southwestern tangerine, navel orange, Guanxi honey pomelo in Fujian. More than 10 million acres of high-value citrus varieties make the pyraclostrobin market too attractive. It is expected that pyraclostrobin will soon become a species commonly used by citrus farmers like mancozeb.
What are the magical properties of pyraclostrobin on citrus?
(1) Strong shoots. Mainly strong spring shoots and strong autumn shoots. The strong spring shoot refers to accelerating the ripening of the spring shoots, reducing the consumption of nutrients in the spring shoots, enhancing the photosynthesis of the leaves, fully satisfying the carbohydrate nutrients needed for the development of young fruit, and the pyraclostrobin is similar to red. Mycophenolic acid promotes the growth and development of young fruit, so that the level of auxin in young fruit is much higher than other meristems in the root tip. Therefore, pyraclostrobin has the magical function of maintaining the fruit of the spring. The significance of strong autumn shoots is even greater. On the one hand, strong autumn shoots can promote the fruit to expand further and increase yield; on the other hand, autumn shoots are the result of the second year, and the quality of autumn shoots directly determines the second year of yield.
(2) Enhance the tree potential, and effectively control diseases such as citrus citrus scab, citrus lipid spot yellow spot, tribute brown spot disease, citrus smut disease.
(3) Anti-Japanese shimmering, reducing mechanical cracking. After being used in the high temperature season, pyraclostrobin reduces the water transpiration of the foliage fruit surface, thereby preventing the production of "sparkling fruit". Early use of autumn shoots, thickening the thickness and toughness of the peel, good control effect on mechanical cracking.
The citrus has a long growing period, and the disease is becoming more and more serious in the south with high temperature and rain. With the deterioration of soil conditions, the orchard's high yield period is gradually shortening. On the basis of enhancing soil fertility, rationally trimming and improving ventilation and light transmission conditions, the use of pyraclostrobin can significantly enhance the growth of citrus, enhance disease resistance and prolong the period of high yield. It also has a good effect on resisting viruses and nutrient yellowing. In the future, pyraclostrobin will be more common in citrus than in mancozeb.
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