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Aulacaspis yasumatsui, or cycad aulacaspis scale (CAS), is a scale insect species in the genus Aulacaspis that feeds on cycad species such as Cycas revoluta [1] or Dioon purpusii (Purpus' cycad). Other common names include the cycad scale, the sago palm scale, [2] and the Asian cycad scale. [3] This is a serious pest of cycads which can kill ...
Cymbidium mosaic virus (CymMV) is a plant pathogenic virus of the family Alphaflexiviridae. Cymbidium mosaic virus and the Odontoglossum ringspot virus (ORSV) are two of the most common viruses affecting cultivated orchids worldwide. Infected plants can have less desirable flowers or other problems, causing significant financial losses to ...
Odontoglossum ringspot virus (ORSV) is a plant pathogenic virus that belongs to the family Virgaviridae. It is one of the most common viruses affecting cultivated orchids, perhaps second only to the Cymbidium mosaic virus. [1] It causes spots on leaves and colored streaks on flowers. [1]
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The scale's activities can result in stress for the plant, causing reduced growth and giving it a greater susceptibility to plant diseases. [12] Mutualistic Formica fusca ants tending a herd of mealybugs. Scale insects in the genus Cryptostigma live inside the nests of neotropical ant species. [13]
Notable early examples of live plant harbored pests—such as beech scale, chestnut blight, and white pine blister rust—led to the Plant Quarantine Act of 1912 and regulations from the US Department of Agriculture in 1919. Despite these and subsequent regulations, insects and pathogens have continued to be introduced through live plants. [1]
The brown soft scale does not normally kill the host plant, but the loss of sap probably causes it to grow more slowly and crop less heavily. The main disadvantage to the host is the sooty mould which grows on the honeydew. This reduces the area of leaf available for photosynthesis, and spoils the appearance of the plant, its flowers and fruits ...
Here are four ways to keep pests out of your home as the temperatures begin to drop. First and foremost, seal any openings you may have that can connect the outdoors to the indoors.