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The dark ones are aphids, and the white ones are likely whitefly since they have wings. Since you have both then a careful search will probably turn up mealybugs as well since they are a known pest of Kalanchoe. These bugs are attacking the most susceptible parts of the plant, the fresh new growth and the flowers. Perhaps you have a source of these bugs on ...


If they have wings, most likely aphids - these are green, white, black or brown in colour and are very common. Any insecticide should work, or try neem oil spray - note that systemic insecticides will keep them away for up two weeks, whereas a contact insecticide will only clear what is currently present on the plant when you use the spray.

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