Fungal Contorl

Compost Topdressing
Most of our competitors utilize fertility programs containing high nitrogen levels promoting the growth of soft, succulent leaves that are susceptible to attack by the brown patch fungus. To help prevent disease outbreaks, we apply Organically sourced nitrogen fertilizer in intervals through the growing season, or use a slow-release products to maintain an even growth rate.
Moisture also plays an important role in disease development. Good drainage is needed to remove excess water from
low-lying areas. To speed evaporation of water from the foliage, prune nearby trees and shrubs to reduce shade and improve air movement and sunlight penetration. Also, if you have a known fungal issue it is best to irrigate lawns at midday to minimize the time that the foliage remains wet. Annual aeration can also assist in moisture management.
Thatch is a large contributor to fungal issues as it harbors and incubates the brown patch fungus. Periodic mechanical dethatching or core aerification is needed to prevent thatch buildup, especially on high-maintenance St. Augustine grass and Zoysia grass lawns.
We always do our best to limit preventive treatments to portions of those lawns that have previously been damaged and the surrounding area.
Treatments are done in Spring (April) and Fall (October).
Brown patch first appears in lawns as small, circular, brown areas several inches in diameter, which quickly in-creases to 3 to 6 feet. These areas often grow together, forming irregular patches of brown, blighted turf up to 20 feet in diameter.
The foliage of high-cut St. Augustine grass or Centipede grass turf often wilts and collapses, giving the blighted patches a sunken appearance. Damaged turf usually recovers when conditions no longer favor the spread of disease. Regrowth of the turf may start in the center of the blighted area, forming a ring or frog eye pattern. Weeds frequently invade turf damaged by brown patch.
Damage to individual grass plants is usually confined to the foliage. Leaves and leaf sheaths attacked by the brown patch fungus, Rhizoctonia solani, first become water-soaked, then wilt, and finally turn brown. On broad leafed turf grasses like St. Augustine grass, distinct tan-colored leaf spots surrounded by a water-soaked margin are sometimes seen. If the crowns of individual plants or stolons are invaded, large areas of a lawn may be killed.