Samples requested for clubroot survey

By Travis Cranmer, Vegetable Crops Specialist
OMAFRA

First appeared in ONvegetables in The Grower, April 2017.

Clubroot, caused by the soil-borne pathogen Plasmodiophora brassicae can cause yellowing, stunting, wilting and club-like roots on susceptible Brassica species including broccoli, cabbage, canola and cauliflower. Clubroot causes an estimated yield loss of 10-15% in Brassica crops worldwide and in severely infested fields a 30-100% yield loss can occur. There are different races of clubroot known as pathotypes and the resistance of many cultivars is pathotype dependent.

severe clubbing, six weeks after seeding
Figure 1. Pak choy with severe clubbing, six weeks after seeding.

Continue reading Samples requested for clubroot survey

Prowl® H2O Herbicide label expanded for control of labeled weeds on direct seeded green onions grown on muck soil

Jim Chaput, Minor Use Coordinator

The Pest Management Regulatory Agency (PMRA) recently announced the approval of an URMULE registration for Prowl® H2O Herbicide for control of labeled weeds on direct seeded, green (bunching) onions grown on muck soil in eastern Canada and British Columbia. Prowl® H2O Herbicide was already labeled for use on a number of crops in Canada for control of weeds. Continue reading Prowl® H2O Herbicide label expanded for control of labeled weeds on direct seeded green onions grown on muck soil

Consultation for the Plant and Animal Health Strategy for Canada

Learn, participate and have your say

The proposed Plant and Animal Health Strategy for Canada was drafted together by governments, industry and others who play a role in safeguarding plant and animal health.

The strategy will protect plants and animals from new and emerging risks by focusing efforts more on prevention and increasing partner collaboration and coordination.

You are invited to join the conversation this month and contribute your ideas on the draft strategy. Continue reading Consultation for the Plant and Animal Health Strategy for Canada

4R Phosphorus Management Practices for Major Commodity Crops of North America

The International Plant Nutrition Institute has just released a new summary of best management practices for reduction of phosphorus losses for the major commodity crops of North America. Many of these practices are applicable to vegetable production, as well.

4R Phosphorus Management Practices for Major Commodity Crops of North America

Find this and other plant nutrition resources at http://www.ipni.net/issuereview or go directly to the pdf.

Information for commercial vegetable production in Ontario