Filtering by tag: apple diseases ✕

GLS and bitter rot on 'Gala' apple tree during rain

Apple Disease Update: Week of August 3, 2025

They say a picture is worth 1000 words, but maybe sometimes it's just better to keep words unsaid....At the time of this post, it has rained nearly 6 inches since July 29th. To add insult to injury,…

Symptoms of Marssonina leaf spot and GLS on apple

Apple Disease Update: Week of July 27, 2025

As 'Gala' harvest nears, it's time to start focusing on PHIs and final fungicide applications prior to fruit being harvested. It's also time to commit to keeping the sprayers running at the very…

Two GLS treatments showing good and poor efficacy

Apple Disease Update: Week of July 20, 2025

It's that time of year where the excellent treatments for managing Glomerella leaf spot and bitter rot separate themselves from the imposters. Fungicide applications for the tree on the left (Captan…

symptoms of mlb on apple

Apple Disease Update: Week of July 13, 2025

Another warm, humid, and in many areas wet couple of days. Although I wrote a post last week, it doesn't seem like the system automatically sent it out to those registered to receive updates. There…

Apple fruit in the rain

Apple Disease Update: Week of July 6, 2025

It appears as though we've reached the afternoon rainy season here in western NC. While the rain directly aids in the disease infection process by bouncing conidia (asexual spores) to a new location,…

Frogeye leaf spot on apple leaf

Apple Disease Update: Week of June 29, 2025

June is on its way out in a heat wave and while these temperatures aren't ideal for diseases like apple scab, Glomerella leaf spot, bitter rot, and Bot rots will continue to flourish in these hot,…

flyspeck sooty blotch on apple fruit

Apple Disease Update: Week of June 22, 2025

This week, I've given up on offering fungicide suggestions based on the weather. Seems like I'm wrong every time! Furthermore, it rained for about an hour in South Asheville yesterday and at my house…

early symptoms of Glomerella leaf spot on 'Gala' apple

Apple Disease Update: Week of June 15, 2025

After a rough week with the heat, rain and humidity, you may want to consider trying to get a fungicide application on ASAP if you didn't apply anything after the Thursday rain. It looks like the…

Early symptoms of GLS on Gala

Apple Disease Update: Week of June 8, 2025

The forecast is calling for rain this week which means extended leaf wetting events and a battle to keep fungicide residues on the tree. We completed our first rating in our Glomerella leaf…

Early Symptoms of bitter rot on fruit

Apple Disease Update: Week of June 1, 2025

Finally some respectable weather this week to start off the last few weeks of spring. Looking at my weather apps this evening, Monday-Thursday look like ideal spray days prior to the rain potentially…