Invasive Species Compendium

Detailed coverage of invasive species threatening livelihoods and the environment worldwide

Abstract

Effect of planting date on squash Cucurbita pepo yield and mosaic disease incidence at the Jordan valley.

Abstract

The effect of planting date on C. pepo yield and mosaic disease incidence was evaluated under field conditions in Jordan. In the autumn growing seasons, planting C. pepo in early to mid October led to high yield and reduced virus infection due to the reduction of the insect vector population. In the spring growing season, although the disease incidence of the different planting dates reached 100% at the end of the season, planting early to mid February reduced the development of disease incidence and thus significantly reduced the non-marketable yield. ELISA indicated that most of the virus infection was caused by zucchini yellow mosaic potyvirus and watermelon mosaic 2 potyvirus.