Effect of Crop Rotation on <I>Meloidogyne</I> spp. and <I>Pratylenchus</I> spp. Populations in Strawberry Fields in Taiwan


  • P. Chen
  • T. T. Tsay


bitter gourd, Capsicum annuum, Colocasia esculena, corn, fallow, Glycine max, Hibiscus esculentus, India sesbania, lana vetch, Lycopersicon esculentum, Meloidogyne hapla, Meloidogyne incognita, Momordica charantia, Okra, Oryza sativa, pepper, Pratylenchus coffeae, Pratylenchus penetrans, rice, rotation, Sesbania sesban, soybean, strawberry yield, taro, Vicia sativa, Zea mays.


Changes in population levels of Meloidogyne hapla, M. incognita, Pratylenchus coffeae, and P. penetrans were studied in 12 strawberry fields in the Dahu region of Taiwan. Ten potential rotation crops and two cultural practices were evaluated for their effect on nematode populations and influence on strawberry yield. Rotation with rice or taro and the cultural practice of flooding and bare fallowing for four months were found to reduce nematode soil populations to two or fewer nematodes per 100 ml soil. Average strawberry yields increased between 2.4% to 6.3% following taro compared to the bare fallow treatment. Corn suppressed M. incognita and M. hapla populations and resulted in an increased in strawberry yield compared to bare fallow. Other phytopathogens also present in these fields limited taro as the rotation choice for nematode management. Results of this research and economic analysis of the input requirements for various rotation crops, corn and bare fallow were recommended as the most appropriate rotation strategies for nematode management in strawberry in this region.