Department of Plant Protection, INIA, Madrid, Spain.
J Appl Microbiol. 2009 Feb;106(2):592-605. doi: 10.1111/j.1365-2672.2008.04030.x.
To study the population dynamics of Epicoccum nigrum on peaches and nectarines and to enhance its colonization on fruit surfaces to improve its biocontrol efficacy against brown rot.
Twelve surveys were performed to study E. nigrum populations and their effect on the number of the pathogenic Monilinia spp. conidia in peach orchards in Spain and Italy between 2002 and 2005. Fresh conidia and five different formulations of E. nigrum conidia were applied three to six times to peach and nectarine trees from full flowering to harvest. The size of the E. nigrum populations was determined from the number of colony-forming units and conidial numbers per flower or fruit. Treatment with all conidial formulations increased the size of the indigenous conidial population on peach surfaces.
Formulations of E. nigrum having high viability are most effective against conidia of the pathogen when applied at pit hardening and during the month immediately before fruit harvest.
Application of an E. nigrum conidial formulation decreased the number of conidia of Monilinia spp. on fruit surfaces during the growing season to the same extent as fungicides.
研究黑曲霉在桃和油桃上的种群动态，增强其在果实表面的定殖能力，以提高其对褐腐病的生物防治效果。
在 2002 年至 2005 年期间，在西班牙和意大利的桃果园进行了 12 次调查，以研究黑曲霉种群及其对病原菌 Monilinia spp. 分生孢子数量的影响。从盛花期到收获期，将新鲜分生孢子和五种不同配方的黑曲霉分生孢子应用于桃树和油桃树 3 至 6 次。通过每朵花或果实的菌落形成单位数和分生孢子数来确定黑曲霉种群的大小。所有分生孢子配方的处理均增加了桃表面土著分生孢子种群的大小。
在硬核期和果实收获前一个月施用高存活率的黑曲霉分生孢子配方对病原菌分生孢子最有效。
施用黑曲霉分生孢子配方在生长季节减少了果实表面 Monilinia spp. 分生孢子的数量，其效果与杀菌剂相当。
