Blueberries, Highbush: Introduction


Pub 75: Guide to Weed Control > Berry Crops > Highbush Blueberries: Introduction


Excerpt from 2010-2011 Chapter 14, Publication 75, Guide to Weed Control, Order this publication

Cover of Publication 75, Guide to Weed ControlIntroduction

Site Preparation Before Planting - See Chapter 6, Preplant Weed Control, page 81.

Cultural Weed Control - see Cultural Weed Control in Berry Crops, page 249.

Mulching:

Biodegradable mulch could be used for weed control within the plant row. Sawdust mulch will assist in weed control if it is applied early in the season before the weed seeds germinate. Apply sawdust 5 cm thick. The mulch will not prevent the germination of weed seeds that may blow onto the surface of the mulch.


In subsequent years, the organic matter in the mulch may tie up and thus reduce the effectiveness of certain residual herbicides.


The nitrogen requirements of the crop will change as the mulch is degraded. Initially nitrogen will be consumed by micro organisms, thus necessitating higher rates of nitrogen fertilizer. Later, as the sawdust is degrading, nitrogen will be released and the crop may require less nitrogen fertilizer than an unmulched crop. It may take 2 years or more for sawdust mulch to significantly decompose. Adjust fertilizer rates according to mulch breakdown, plant growth and leaf nutrient analysis results.

Recommended rates per hectare or per acre refer to area actually treated with herbicide.

CAUTION: - Simazine, DEVRINOL and SINBAR residues, high enough to harm many crops, may persist for several years after removal of the planting.

 

Related Links

 

 


For more information:
Toll Free: 1-877-424-1300
Local: (519) 826-4047
E-mail: ag.info.omafra@ontario.ca
Author: OMAFRA Staff
Creation Date: 25 November 2002
Last Reviewed: 08 June 2010