Seed Treatment with Systemic Fungicides for the Control of Fusiform Rust in Loblolly Pine

John G. Mexal; Glenn A. Snow

Treesearch

Seed Treatment with Systemic Fungicides for the Control of Fusiform Rust in Loblolly Pine

Informally Refereed

Authors:

John G. Mexal, Glenn A. Snow

Year:

1978

Type:

Research Note

Station:

Southern Research Station

Source:

Res. Note SO-238. New Orleans, LA: U.S. Department of Agriculture, Forest Service, Southern Forest Experiment Station. 4 p.

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Abstract

A new systemic fungicide, Bayleton, may economically control fusiform rust in southern pine nurseries. Stratified seeds of loblolly pine (Pinus taeda L.) were imbibed with Bayleton and two other systemic fungicides, and the seedlings were inoculated at three stages of emergence with spores of Cronartium quercuum (Berk.) Miyabe ex Shirai f. sp. fusiforme. Bayleton was the only effective fungicide. Soaking seed at a concentration of 800 mg/L did not inhibit seed germination and afforded significant protection against the disease.

Keywords

Bayleton, Cronartium quercum

Citation

Mexal, John G.; Snow, Glenn A. 1978. Seed Treatment with Systemic Fungicides for the Control of Fusiform Rust in Loblolly Pine. Res. Note SO-238. New Orleans, LA: U.S. Department of Agriculture, Forest Service, Southern Forest Experiment Station. 4 p.