施微量元素对桉树红叶梢枯病防治效果分析

Control Effect of Applying the Micro Element on Cunninghamia lanceolata Red-leaf Top Dry

用硼砂、硫酸锌、硫酸铜3种微量元素对桉树红叶梢枯病防治试验表明,在桉树树头旁挖穴深15 cm,施单一硼砂或硼砂、硫酸锌、硫酸铜混合防治均有明显效果,最好的是每株施硼砂12 g+硫酸锌3 g,其次是每株施硼砂18 g+硫酸锌3 g+硫酸铜3 g和硼砂18 g+硫酸锌3 g,因此建议可用硼砂+硫酸锌控制桉树红叶梢枯病危害。

Cunningharnia lanceolata red-leaf Top Dry was controlled by borax, zinc sulfate, and bluestone, the results showed that both applying borax only and applying the mixture of borax, zinc sulfate, and bluestone to control by digging a hole with depth of 15 cm had the evident effects, 12 g of borax＋ 3 g of zinc sulfate was the optimal, 18 g of borax＋ 3 g of zinc sulfate＋ 3 g of bluestone, and 18 g of borax ＋ 3 g of zinc sulfate were the second, so it was suggested that borax ＋ zinc sulfate might be used to con- trol C. lanceolata red-leaf top dry damage.