How do you treat rusty soybeans?

Foliar fungicides are the tool of choice and only a few are labeled for use against soybean rust. Your local extension office can help you determine which fungicides might be useful. Fungicides need to be applied upon early infection, however, quickly covering the entire canopy of the plant.

Is soybean rust a pest?

Soybean rust is a destructive foliar disease of soybean caused by the fungus Phakopsora pachyrhizi. Asian soybean rust is an aggressive disease that destroys photosynthetic tissue, causing premature defoliation, early maturation, and lower yields. It was first found in the continental United States in November 2004.

How do you keep soybeans from rusting?

The chemical control of Asian soybean rust is the most widely used method for controlling the disease. Fungicide application has been shown to be an effective alternative for the producer in the management of this aggressive disease.

How does soybean rust spread?

Soybean rust spores are transported by air currents and can spread rapidly over wide distances. Spores need live, green tissue to germinate and reproduce. It has a broad host range and can infect many different species of legumes including: dry beans, green, lima and butter beans, vetch species, lupines, and medic.

What plant does myrtle rust affect?

Myrtle rust threatens trees and shrubs in the Myrtaceae family of plants which includes Australian natives like bottle brush (Callistemon spp.), tea tree (Melaleuca spp.) and eucalypts (Eucalyptus spp., Angophora spp., and Corymbia spp.).

What are the growth stages of soybeans?

Growth stages of soybeans is divided into vegetative growth stages (V) and reproductive growth stages (R). Subdivisions of the V stages are designate numerically as V1, V2, V3, through V(n); except the first two stages, which are designated as VE (emergence) and VC (cotyledon stage).

Is Myrtle rust a virus?

Myrtle rust is a disease caused by the exotic fungus Austropuccinia psidii (formerly Puccinia psidii, initially identified as Uredo rangelii). Overseas there are known to be several strains of P. psidii. At this stage Australia has only one strain.