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在柑桔果实先刺伤接种柑桔绿霉病菌Penicillium digitatum孢子悬浮液再进行药剂浸果的条件下,研究了不同类型、不同浓度药剂对抗苯并咪唑类和咪唑类杀菌剂(双抗)或双敏感菌系的防治效果。结果表明:500或1 000mg/L的甲基硫菌灵、咪鲜胺(扑霉灵)和抑霉唑(500mg/L)单剂,甲基硫菌灵和咪鲜胺(或扑霉灵)混剂对双抗菌系防治作用均低于50%;1 000mg/L百可得单剂,500、1 000mg/L百可得混配相同浓度咪鲜胺(或扑霉灵)均可控制双抗菌系引起的腐烂,防治效果在83%以上;1 000mg/L咯菌腈对双抗菌系的防治效果为83.3%,500和1 000mg/L嘧霉胺对双抗菌系的防治效果分别为91.1%和98.9%。500mg/L百可得、抑霉唑和嘧霉胺单剂,500mg/L百可得混配相同浓度咪鲜胺(或扑霉灵),500mg/L甲基硫菌灵混配相同浓度扑霉灵对敏感菌系均有88%以上防治效果。基于研究结果,建议不再使用苯并咪唑类和咪唑类杀菌剂单剂或这两类杀菌剂混剂防治柑桔采后病害,可选择1 000mg/L百可得(双胍辛烷苯基磺酸盐)单剂,500mg/L百可得和相同浓度咪唑类混剂。同时建议将嘧霉胺登记用于柑桔采后处理。
Under the condition of citrus fruit first stabbing inoculation with spore suspension of Penicillium digitatum, the effects of different types and concentrations of agents against benzimidazoles and imidazole fungicides (double antibodies) or Double sensitive strains of the control effect. The results showed that when 500 mg / L or 1000 mg / L of thiophanate methyl, prochloraz (250 mg / L) and imazalil 500 mg / L, thiophanate methyl and prochloraz ) Mixture on the dual antibacterial line prevention and treatment are less than 50%; 1 000mg / L 100 can get a single dose of 500,1 000 mg / L 100 may be mixed with the same concentration of prochloraz (or bactericidal) can be controlled The results showed that the control effect of 1 000 mg / L fludioxonil on double antibacterial strains was 83.3%. The control effects of 500 and 1 000 mg / L pyrimethanil on the double antibacterial strains were 91.1% and 98.9%. 500mg / L Bacardi, imazalil and pyrimethanil single dose, 500mg / L hundred and may be mixed with the same concentration of prochloraz (or bacteriocin), 500mg / L thiophanate-methyl mixed with the same concentration of flutter Allelopathic sensitive strains of bacteria have more than 88% control effect. Based on the results of the study, it is recommended not to use benzimidazoles and imidazole fungicides alone or two kinds of fungicides mixture to prevent and cure citrus postharvest disease, the choice of 1 000 mg / L 100 may be available (biguanide octane phenyl sulfonamide Acid salt) single dose, 500mg / L hundred and the same concentration of imidazole mixture. It is also proposed that pyrimethanil be registered for postharvest citrus harvesting.