Solutions: Some steps to take to address black spot include: Prune away any infected leaves, cleaning the pruners between plants with a 10% bleach solution so that the fungus does not spread to healthy leaves. Don't compost pruned plant parts as the spores can linger in the soil for a long period of time - instead, dispose of them in the trash. Use an approved fungicide such as Trifloxystrobin, Chlorothalonil, Maneb, or Myclobutanil. Use a spreader in the fungicide spray to ensure better coverage.

Solutions: Outdoors, the weather and natural enemies of scale insects (such as lady beetles and parasitic wasps) typically keep these pests at bay. When their numbers become abundant (or when scale insects affect indoor plants), interventions are needed. Here are some options: Dip a cotton swab in 80% isopropyl alcohol and run it over the leaves and stems to remove scale Wash leaves with a mild detergent solution (this also removes honeydew) Inspect plants weekly for additional infestations Use spot treatments of insecticidal soap or horticultural oil Remove the plant if a heavy infestation cannot be eliminated – this will prevent it from spreading to other plants Take steps to control ants that may have been attracted to the insects' honeydew

Solutions: Diseases Fungicides can prevent the transmission of spores, but they may not treat the established infection. The first step is removing and disposing of all infected plant parts. Then apply recommended chemicals. For bacterial infections, apply a spray containing copper or streptomycin. For fungal infections, consult the local cooperative extension for recommendations on which fungicides will work best. Nutrient deficiency Apply a liquid fertilizer via foliar application to fix the deficiency quickly. Follow label directions regarding dosing instructions and application notes, such as not using before the rain or when temperatures are out of the recommended range. Incorrect watering Determine the water requirements for your specific plant, and follow accordingly. Some plants like consistently moist soil, and others like the soil to dry out slightly before being watered. Pests Thoroughly apply an insecticidal soap, an organic product like neem oil, or an appropriate chemical insecticide to the plant.

Solutions: Leaf Weevils are relatively easy to control once their presence is discovered. Here’s what to do: Spray the foliage with an insecticide Place sticky traps around the lower trunks of fruit trees and other woody plants. Weevils can’t fly, and have to crawl up the plants when they emerge from the soil. Dig into the soil around plants with a garden fork and remove and dispose of any larvae. Let chickens roam around the garden, as they love to feed on weevil larvae.