Annual and perennial weed control in citrus orchard

ABSTRACT

This study was carried out during two successive seasons 2003 and 2004 on Washington Navel orange trees grown in a private orchard at Sendpes, Kalubia Governorate to study the effect of some weed control treatment on annual and perennial weeds and the productivity of Washington Navel orange. The tested weed control methods were the herbicide Fluzifo-butyl at 2 L/feddan, IL/feddan and Fluzifop-butyl+4 kg urea/feddan], two types of mulch i.e., synthetic mulch [black polyethylene] and organic mulch [straw] as well as twice hand and mechanical hoeing treatment. Comparing with unweeded control. All weed control treatments revealed a significant depression in fresh weight [f.w.] of annual, perennial and total weeds of application as compared with control. The highest reduction values in [f.w.] were significantly obtained by black polyethylene and straw mulching treatments followed by twice hand hoeing treatment. All weed control treatments gave high significant increase in the fruit weight and yield as compared with control treatment