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journal1 ›› 2019, Vol. 35 ›› Issue (1): 31-36.DOI: 10.16409/j.cnki.2095-039x.2019.01.010

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Effects of Seed Coating on the Control of Underground Pests of Fresh Corn and the Development of Seedling Growth

SHANG Dongliang, YU Huimin, ZHANG Jinliang, YUE Jin, BAN Liping   

  1. College of Animal Science and Technology, China Agricultural University, Beijing 100193, China
  • Received:2018-08-13 Online:2019-02-08 Published:2019-01-31

Abstract: The effects of three types of seed coating on control of the main underground pests of fresh corn and development of seedling growth were investigated to screen out the high efficiency and low toxicity seed coating agents using Jingketian 183 and Jingkenuo2010 as test varieties. The three seed coating agents were 3.5% Manshijin+30% Ruisheng, Fuliang (40% bromoyl thiamethoxazine seed treatment suspension), and 5 billion spores/g Beauveria bassiana. All the pesticide treatments did not cause phytotoxicity, indicating their safety for fresh corn. Seed coating improved the vigor and germination rate of seeds. The germinability and germination rate of Jingketian 183 reached the highest of 91.5% and 92.75%, respectively, when the seeds were treated by 3.5% Manshijin+30% Ruisheng. Jingkenuo 2010 showed the highest germination rate (93.0%) when treated by 5 billion/g B. bassiana, and the highest germinability (91.5%) under the treatment of 3.5% Manshijin+30% Ruisheng. The three coating agents increased plant height and dry matter accumulation, while the 5 billion spores/g B. bassiana had the best control of underground pests in Jingketian 183 (79.67%) and Jingkenuo 2010 (88.67%). Therefore, use of B. bassiana in mixture with low toxicity seed coating agents is expected to promote growth and development of plants and control of underground pests.

Key words: fresh corn, seed coating, growth and development, underground pests

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