How can spider mites be eliminated from a ficus? - briefly
Use a vigorous spray of water to knock mites off the foliage, then treat the plant with a miticide such as neem oil, insecticidal soap, or a horticultural oil, reapplying every 5–7 days until none are seen. Isolate the ficus and maintain higher humidity to deter future infestations.
How can spider mites be eliminated from a ficus? - in detail
Spider mites are tiny arachnids that feed on the undersides of ficus leaves, causing stippling, yellowing and eventual leaf drop. Effective control requires a combination of cultural, mechanical, biological and chemical measures applied systematically.
First, isolate the affected plant to prevent the pests from spreading to nearby foliage. Prune heavily infested branches, discarding them in sealed bags. Clean the remaining foliage with a strong jet of water, focusing on the leaf undersides where the mites congregate. Repeating this wash every few days for two weeks reduces the population dramatically.
Second, introduce natural enemies. Predatory mites such as Phytoseiulus persimilis and Neoseiulus californicus consume spider mites at all life stages. Apply a commercial preparation according to label instructions, ensuring adequate humidity for the predators to thrive.
Third, employ insecticidal soaps or horticultural oils. Dilute the product to the recommended concentration (typically 2–3 % active ingredient) and spray thoroughly, covering both sides of each leaf. Repeat applications every 5–7 days until no mobile mites are observed. For severe infestations, consider a miticide containing abamectin or spirotetramat, but rotate chemistries to avoid resistance.
Fourth, adjust environmental conditions that favor mite development. Maintain indoor humidity above 50 % by misting or using a humidifier, and keep temperatures between 65–75 °F (18–24 °C). Avoid excessive nitrogen fertilization, which produces tender growth that is more attractive to the pests.
Finally, monitor the plant regularly. Use a hand lens or a sticky trap to detect low‑level populations early. Record observations and adjust the treatment schedule accordingly. Consistent implementation of these steps eradicates spider mites and restores the health of the ficus.