Agrochemical composition for controlling bacterial canker of kiwifruit cultivars and prevention and treatment method of bacterial canker of kiwifruit cultivars

Abstract

The invention relates to an agrochemical composition for controlling bacterial canker of kiwifruit cultivars and a prevention and treatment method of bacterial canker of kiwifruit cultivars. An inorganic agrochemical powder composition for controlling bacterial canker of kiwifruit cultivars contains, based on total weight of all active ingredients, 20.0-20.1% silica, 1.0-2.0% aluminum, 15.0-16.0%magnesium, 35.0-36.0% calcium, 0.05-0.1% phosphorus, 1.0-1.3% iron, 0.4-0.5% sodium, 0.4-0.5% potassium, 0.4-0.5% copper, 317.0-317.5 mg / kg% of manganese, 72.5-72.8 mg / kg% of zinc, 261.0-262.0 mg / kg%of cobalt, 0.80-0.85 mg / kg% of germanium, 13.6-13.8 mg / kg% of vanadium and 16.8-17.0 mg / kg% of iodine, the remainder being moisture.

Description

technical field [0001] The invention relates to a pesticide composition for preventing and treating kiwifruit canker and a method for preventing and treating kiwifruit canker. Background technique [0002] Actinidiae canker is an infectious disease caused by Pseudomonas syringaepv. actinidiae and is a fatal disease that seriously damages kiwifruit cultivation (Serizawa et al., 1989). In 1988, the kiwi fruit planting area in Jeju Island, where canker disease first broke out in Korea, is located in the middle of Halla Mountain at an altitude of 150-250m. Since it is an area where frost damage often occurs in winter, there are growers who do not have any information and experience on canker disease. It was simply judged as frost damage, and the planting of kiwi fruit in this area was abandoned. (Koh, 1995, Koh and Lee, 1992). [0003] Even after the bacterium called Psa was confirmed to cause kiwifruit canker (Angelo et al., 2012.5), if the canker outbreak is not properly dea...

AI Technical Summary

Problems solved by technology

The Psa biological variant (biovar) that caused canker in kiwifruit in Korea until 2010 was only Psa2, but since Psa3, which caused greater damage to kiwifruit and kiwifruit varieties, entered Korea in 2011, it has greatly affected the cultivation of kiwifruit. Farmers of kiwifruit and kiwifruit varieties have more severe damage and are spreading (Kim et al., 2016a, 2016b; Koh et al., 2012a)

[0013] It is known that, generally in an orchard environment, there are areas where roots are poorly developed due to clay loam soil with poor drainage, trees that suffer from wind damage due to poor wind protection, areas where frost damage and cold damage are frequent due to high terrain, and places where there is a lot of wind damage. Damage tends to occur when tree vigor is weakened due to excessive fruiting throughout the year, and is more common in trees with excessive nitrogen use or weak growth of plant tissue

[0014] If you look at the prior art related to the prevention and treatment of kiwifruit canker of the present invention, No. 10-2017-62382 discloses the prevention and treatment of kiwifruit and citrus canker using a mixture of organic compounds berberin (berberin) and tannin (gallotannin) as a natural product Composition, and No. 10-2018-22731 discloses the extract of Sapium berry (S.baccatum) or the organic compound isolated therefrom with an organic solvent, namely gallic acid, methyl gallate, corilagin, tercatain , chebulin tannin, chebulin tannin, and quercetin are active ingredients of a bacterial wilt control composition, but there is no disclosure or suggestion of a pesticide composition for kiwifruit canker control using inorganic compounds.

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