Yes, this is correct. Chipco Signature Fungicide does have instructional use on residential areas where the Quali-Pro Fosetyl-Al 80 WDG Fungicide is not for use on residential turf.
The Fosetyl-Al 80 WDG Fungicide would not be applied as a drench to the soil. It is applied only as a foliar application as directed on the product label.
The Fosetyl-Al 80 WDG Fungicide is not labeled for use on palm trees and is only labeled to target root rot in conifer nurseries. According to this article by the University of Clemson regarding Palm Diseases and Nutritional Info, Ganoderma Root & Butt Rot are the most common forms of potential rot in palm trees. If this is the type of rot that is impacting your tree, the following information is what they provided regarding it:
Prevention & Treatment: This fungus survives on plant tissue, so remove and destroy any root systems, stumps and trunks of dead palms in the landscape. Avoid any injury to the tree, especially during planting, staking and regular maintenance activities by string trimmers and lawn mowers. Ganoderma survives in the soil, so it is not recommended that another palm be planted in the same location. There is no chemical control for this disease.
If you are unsure what type of rot you have, we would recommend reaching out to a palm specialist or master gardener in your area/county for assistance.
Fosetyl-Al 80 WDG Fungicide is labeled to treat for pythium diseases including blight and root rot in turf grass on golf courses, sod farms, commercial turf areas only. This is not for use on home or residential turfgrass. Apply at 4 fl oz per 1000 sq. ft. at 14 day intervals or 8 fl oz per 1000 sq ft at 21 day intervals.
The product label gives these Specific Directions on page 7: Apply Quali-Pro Fosetyl-Al 80 WDG in 1 to 5 gals. of water per 1000 sq. ft. Agitate solutions during the spray operations. Calibrate equipment before making application. Use in a season-long program to control listed diseases by applying when conditions favor disease. Make repeat applications at the spray interval listed based on use rate. Allow the foliage to dry before watering or mowing treated areas.