Survival of Slash Pine Having Fusiform Rust Disease Varies with Year of First Stem Infection and Severity

Survival of Slash Pine Having Fusiform Rust Disease Varies with Year of First Stem Infection and Severity

Probabilities of death of young slashpine infected byfusiform rustpathogen varied with timing and severity of infection. Trees in nine slashpineplantations varying widely in site quality and initial number oftreesperacre hadsimilarprobabilities ofdeathfrom rust. About 90% oftrees with stem infections in thejirst three growing seasons died by age 15 if the gall spanned more than 50% of the circu...

Prescreening Slash Pine and Cronartium Pedigrees for Evaluation of Complementary Gene Action in Fusiform Rust Disease

Stelzer, H. E., Doudrick, R. L., Kubisiak, T. L., and Nelson, C. D. 1999. Prescreening slash pine and Cronartium pedigrees for evaluation of complementary gene action in fusiform rust disease. Plant Dis. 83:385-389. Single-urediniospore cultures of the fusiform rust fungus were used to inoculate seedlings from 10 full-sib families of a five-parent slash pine diallel at two different times in 19...

Decline in Values of Slash Pine Stands Infected with Fusiform Rust

Losses in product values due tofusi form rust , caused by Cronart ium quercuum (Berk.) Miyabe ex Shiraifi sp. fusiforme, were estimatedfrom four, 2.5-yr-old slash pine, Pinus elliotii Engelm., plantations planted in southern Mississippi over a range of sites with different growth potential and expected rust infection levels. The percentage infected stems rangedfrom 2.5% to 62% at age 2.5. The c...

Combinations of Fungicide and Cultural Practices Influence the Incidence and Impact of Fusiform Rust in Slash Pine Plantations

Slush pine was grown in central Louisiana unrler,f?)ur levels c!f'culture with or without repeatc~d spmyings of the .sy.vten~ic ,fungicide triadimefhn , f i r protection against ,fusifi)rm rust. The eight treatment cornbinations were: ( I ) no,fungicide, weed control, or,fertilizer; ( 2 ) weeded; ( 3 ) weeded, applied irzorganic ,firtilizer, and bedded b<fi)replcrrlting; ( 4 ) weeded, bedded, a...

Effect of mulching on severity of mulberry rust disease