These parasitic flies attack invasive fire ants. Introduce or promote beneficial phorid flies to gardens. Look for products that contain Indoxacarb. Apply the bait during a dry evening so the ants can forage for it at night. For a chemical solution, broadcast insecticide bait formulated for fire ants in the area around a mound. Pour citrus oil, which is toxic to fire ants, down their holes. Dig out and remove entire mounds (remember, they go deeper than they seem). For less severe cases: Physically remove mounds. Keeping them under control will ensure comfortable gardening for all. Fire ants can be a painful pest to have around for you and your plants.
Solutions: Caution: fire ants are venomous and cause painful bites which can be fatal in the case of a rare but significant allergy. An infected plant will likely die within ten years.
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Antibiotic injections applied by a professional can reduce symptoms for a season, however, the above cultural management methods are the best options to reduce symptoms and prolong life.
If your plant has bacterial leaf scorch, there is no cure. Severely affected twigs may be removed using a pair of sharp and sanitized pruning shears, as weakened branches are susceptible to secondary infections. Even if you have enough potassium in the soil, plants will not be able to take it up if the soil is consistently too dry.
If soil testing has revealed a potassium deficiency, apply a potassium fertilizer and water well. Avoiding excess fertilization in the first place is the best approach. However, keep in mind that fertilizer runoff is an environmental pollutant. If fertilizer burn is to blame, irrigate the soil deeply to flush out excess fertilizer salts. Protect trees from severe root damage of nearby construction and excavation. Check the root collar for girdling or circling roots that strangle the trunk and limit water and nutrient movement. Mulching the root zone (preferably with wood chip mulch) helps retain moisture, reduce evaporation, and promotes a healthy, functional root environment that is critical for water movement to the leaves. Solutions: The solution to leaf scorch will depend on the cause, however, in general all cultural care methods that improve plant health and root functionality will reduce symptoms.
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