2019 Strawberry Season Update #1- Aphids

Wednesday, July 17, 2019

Perennia is continuing the strawberry aphid monitoring project this season. Strawberry aphids are the primary vector of the strawberry viruses (strawberry mild yellow edge virus and strawberry mottle virus) found in Nova Scotia, and by monitoring the aphid we aim to prevent further spread of viruses in the province. The risk of new infection is highest during the strawberry aphid flight period when winged aphids can move large distances to new fields and spread infection. As of last week's aphid trapping and monitoring we found our first winged strawberry aphids. Because of this it is crucial to continue to monitor and scout for winged and wingless strawberry aphids in your fields.  

Winged strawberry aphid (scale 1mm) 

Adult strawberry aphid (scale 1mm)

To prevent virus spread it is important to protect new plantings by controlling aphids in established fruiting fields. Seeing that we are in the midst of harvest there are limited products available for fruiting fields but there are a few tools with short (0 day or 1 day) pre-harvest intervals. For information on control options please see Strawberry Management Guide 2019.

2018 Strawberry Season Update #4 Renovation

Thursday, August 2, 2018

The June-bearing strawberry harvest has ended, and now it's time to renovate. The main purpose of renovating is to re-establish  a healthy, vigorous stand of plants so that there is a high yield potential for the next crop. Fruit bud initiation begins in mid-August so it crucial to renovate as soon as possible after harvest to optimize this process. Renovating also gives an opportunity to control weed problems in the field

Post-emergent herbicide applications can be used before and after mowing depending on the product being used and the target weed. For information on products available please refer to Perennia's Guide to Weed Management in Strawberry or New Brunswick's Strawberry IPM Weed Management Guide.

Mowing strawberry leaves is the next step in renovating, which stimulates early initiation of fruit buds, controls plant density resulting in larger fruit size, and can reduce inoculum levels for certain leaf diseases and botrytis fruit rot. Following mowing, fertilizer should be applied and adequate soil moisture levels maintained (through either irrigation or rainfall) to support new growth. For more information on renovating strawberries please refer to Perennia's Five Renovation Steps for Strawberries.