Bean, soy, pea, lemongrass, ornamental trees, shrubs and small plants, maple, wheat, barley, and oregano
Rust fungi, as the name implies, creates symptoms that are yellow to orange-brown or rust colored on the top side of infected leaves. Many species of rust fungi exist; each one favors a particular range of weather conditions and hosts, but most fungi need a layer of standing water on leaf surfaces in order to cause an infection.
Rust fungi only live on and infect living tissues. The symptoms are more likely to appear on leaves, petioles, tender shoots, and stem.
Rust fungi have easily wind-dispersed spores that put them among the most mobile plant pathogens around the world.
The sooner the better: It’s easier and more cost effective to overcome infestation by controlling rust in its initial stage. Make it a routine to monitor the field regularly and search plants for the presence of rusty-like symptoms on a weekly basis.
Maintain adequate space: Avoid overdensity planting in order to allow light to penetrate and promote the quick drying of leaves and fruits on humid days.
Sanitation: Remove plant debris and make an effort to keep your field and its surroundings as clean as possible.
Improve air circulation: Promote drying foliage by shortening the duration of wetting periods and introducing net curtain vented areas.
Other moisture reduction techniques include covering the ground with polyethylene sheets to reduce evaporation from the soil.
The following are fungicides used in one or more parts of the world: propiconazol, myclobotanil, and tebuconzole.
Products based on tea tree oil and neem oil.
*Names marked in red are considered to be highly poisonous to beneficial insects.
*Names marked in green are considered to be organic and IPM (integrated pest management) compatible.