Often forced into bloom for Christmas, make Christmas cacti bright additions to your holiday home. Insects that infest Christmas cactus serious problems in greenhouses and often ride in the houses to new plants. These insects are difficult to control once an infestation is found, check for a healthy new plants and power and check for signs of insects before bringing a Christmas cactus in your home.
Fungus gnats are small black flies that live on Christmas cactus leaves and compost. The adults are a nuisance, but not harmful to the plant. Their larvae, which resemble tiny black worms that feed on roots, weakening the plant and making it susceptible to diseases and insects. They thrive in moist soil, so water the plant only when needed. Dry ground control small infestations. If you need to take stronger measures, the purchase of a soil drench labeled for use against fungus gnats and use it according to the directions on the label.
Root mealybugs attack the roots of the Christmas cactus. If you dig into the bottom of the infected plants, which you can see fuzzy white masses of female mealybugs and their eggs. The symptoms are yellowing leaves and reduced plant vigor, resemble the symptoms of many other problems. Since you can not see the insect dies, the plant often before discovering the infestation. They are difficult to control, and the best solution is to destroy infected plants.
Thrips are tiny insects that feed on buds and immature segments Christmas cactus. Can have open flowers silver stains and closed buds may drop. Thrips are difficult to control and in cases of severe infestation, it may be best to get rid of the plant. Use an insecticide for use against thrips per the instructions on the label marked. Multiple repeat treatments may be necessary to get this pest control. An insecticide that is both insecticidal soap and neem is a good choice.
Scale insects are light brown to dark brown and look like hard, increases. May appear as they move rarely growths on the plant instead of insects. They feed by sucking sap from the segments Christmas cactus leaves. Remove as many of the insects as you go through the Clean them with a soft cloth dipped in soapy water. After that, the plant treated with insecticidal soap or horticultural oil spray following the instructions on the label, and then place it in a shady place to rest. Repeat the treatment may be necessary to control an infestation.