Management of the apple replant problem

Abstract

Apple replant problem is a serious problem in the establishment of new orchards at old apple orchard sites. The disease is a complex syndrome that reduces the survival, growth and yield of young replanted apple trees. The quick and correct diagnosis of biotic and abiotic causes of the problem and the management through bio-control agents as they are eco-friendly and possess the long fertile life of the soil. This problem can be controlled at replanting orchard sites by integrated management practices. The soil fumigation and solarization have been found somewhat more effective, but due to the complex nature of the problem, the combined use of chemical, cultural and biological methods could be beneficial in controlling the disease. Use of certain resistant clonal rootstocks and selection of right scion and rootstock combination as per the agro-climatic conditions may also be helpful in controlling this problem.