The Latest Clever Uses of Wood Ash for Controlling Flower Pests and Diseases

Wood ash not only supplies flowers with potassium and other nutrient elements, but also has a fairly good effect on controlling flower pests and diseases.

Controlling Leaf Blight

Use 1 kg each of wood ash, tea cake and sulfur powder, plus 1.5 kg of lime, crush into powder and mix evenly, then scatter 1.5 to 2.5 grams per pot on flowers prone to leaf blight.

Controlling Leaf Spot

Mix 3 kg of wood ash with 1 kg of quicklime powder evenly and scatter it, 40 to 60 grams per pot, or sieve it and dust it on, or scatter wood ash alone.

Controlling Root Rot

Wood ash has a very good control effect on flower root rot. The specific method is to first dig away the soil around the roots and clear away the soil around the rotted roots. Scrape off the diseased root bark, apply 0.5 to 1 kg of wood ash per plant to cover the roots, then cover with soil.

Controlling Powdery Mildew

For flowers affected by powdery mildew, dig away the root soil to a depth of 5 to 10 cm at a distance of 5 to 10 cm from the main stem, cover each plant with 0.5 to 3 kg of wood ash, and add a thin layer of soil on top of the ash.

Controlling Seedling-Stage Diseases

Flower nursery beds are prone to damping-off, anthracnose and other diseases at the seedling stage. When humidity is high and temperature is low, seedling diseases occur severely and often cause large numbers of seedling deaths. Wood ash can be scattered along the rows, at 20 to 25 kg per mu.

Controlling Aphids

Grind wood ash into powder and sieve it, then in the early morning before the dew has dried (or after sprinkling water first) dust the wood ash onto the bodies of the aphids. You can also wrap the ash in gauze and shake it on, repeating once every three to five days, for 2 to 3 times in succession.

Controlling Root Maggots

When root maggots damage flowers at the seedling stage, using pesticide as a soil drench is likely to cause phytotoxicity, so you can apply 30 to 40 kg of wood ash per mu in the seedling bed. The application method is to scatter wood ash evenly over the surface of the bed at the seedling stage, then hoe and turn it evenly so that the ash and soil are fully mixed. You can also, before sowing or planting, first apply the wood ash in the furrow, and then sow or plant.

Controlling Underground Pests

When raising seedlings, bulbous flower beds often suffer damage from underground pests such as white grubs. Using wood ash as a base fertilizer for control, or covering the seed bulbs with wood ash, can noticeably reduce the damage.