10种杀菌剂对马铃薯晚疫病的防治效果与经济效益评价

选择72%霜脲·锰锌(克露)可湿性粉剂(WP)、50%烯酰吗啉(安克)WP、25%嘧菌酯(阿米西达)悬浮剂(SC)、64%恶霜·锰锌(杀毒矾)WP、68%精甲霜灵·锰锌(金雷)水分散粒剂(WG)、70%丙森锌(安泰生)WP、68.75%氟吡菌胺·霜霉威(银法利)SC、18.7%烯酰·吡唑酯(凯特)WG、25%双炔酰菌胺(瑞凡)SC和50%多菌灵WP等10种药剂进行了田间马铃薯晚疫病防治试验。结果表明:除50%多菌灵WP之外,其他9种药剂对马铃薯晚疫病均具有明显的防治效果和增产效果,防效均达90%以上,增产10.90%～20.30%,净收入增加500～1000元·(667m2)-1。根据药剂的防效和增产效果,提出广东省马铃薯晚疫病防治的参考药剂,首先是72%霜脲·锰锌WP和50%烯酰吗啉WP,其次是68%精甲霜灵·锰锌WG、18.7%烯酰·吡唑酯WG、25%嘧菌酯SC、70%丙森锌WP和64%恶霜·锰锌WP。

Control Effects and Economic Efficiency Evaluation of 10 Fungicides Controlling Potato Late Blight Disease

Ten fungicides, such as 72 % Cymoxanil mancozeb WP, 50 % Acrobat WP, 25 % Azoxystrobin SC, 64 % Oxadixyl mancozed WP, 68 % Metalaxyl-M WG, 70 % Propineb WP, 68.75 % Fluopicolide SC, 18.7 % Cabrio-team WG, 25 % Mandipropamid SC and 50 % Carbendazim WP were investigated for potato（Solanum tuberosum L.）late blight disease control effects in field. The results showed that 9 of them except 50 % Carbendazim WP had obviously control effects（over 90 %）on potato late blight disease and yield increasing role with the rate of 10.90 %-20.30 %. And the net income could be raised to 7 500-15 000 Yuan per hm2. According to the disease control and yield increasing effects, the fungicides used in Guangdong Province for controlling potato late blight better follow the following order; firstly 72 % Cymoxanil mancozeb WP and 50 % Acrobat WP, then 68 % Metalaxyl-M WG, 18.7 % Cabrio-team WG, 25 % Mandipropamid SC, 70 % Propineb WP and 64 % Oxadixyl mancozed WP, etc.