20%融杀蚧螨防治‘甜橘柚’青苔侵害应用效果研究

Effect of Different Fold of 20% Sodium Resinateon Mossy on Citrus reticulate ‘Unshiu’ ×hassaku

摘要: 采用80倍、100倍、150倍、200倍融杀蚧螨（20%松脂酸钠可溶粉剂）溶液对‘甜橘柚’Citrus reticulate ‘Unshiu’×hassaku果树青苔进行防治效果研究。结果表明：在青苔繁殖第一次高峰期（3月）前施用药液可增强防治效果和减少喷洒次数；80倍、100倍液对‘甜橘柚’果树青苔的防治效果均达90%以上，分别为98.38%，93.37%；并于2016年在庆元外婆家合作社‘甜橘柚’基地进行了示范推广应用，果树青苔侵害程度由30%降至5%，防治效果达83.33%，与2015年相比产量和产值分别提高了2 000kg?hm-2和7.2万元?hm-2，增幅分别达9.85%和33.18%，实现了优质高产。

Abstract: In 2002, 2-year scions of Citrus reticulate‘Unshiu’×hassakuwere grafted on 1-yearPoncirustrifoliata and planted in Qingyuan of Zhejiang province.In February of 2015, 80-, 100-,150- and 200-fold of 20% sodium resinatewas sprayed 2 times on mossyonC.reticulate‘Unshiu’×hassaku trees.The results showed that spraying.80- and 100-fold of sodium resinate had efficiency of 98.38% and 93.37% on control of mossy.In 2016, this technique was extended in production base of C.reticulate‘Unshiu’×hassakuinQingyuan.