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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 ...
a) underside of scale showing female and eggs, x24 b) scale upperside, x24 c) female scales on twig d) male scale, x12 e) male scales on twig. Female scale insects in more advanced families develop from the egg through a first instar (crawler) stage and a second instar stage before becoming adult. In more primitive families there is an ...
Fiorinia phantasma was described from the Philippines in 1915, where it had been collected from Neolitsea. [1] The first documented occurrence outside the Philippines and the first case of invasion was reported from the Hawaii Islands, where heavy infestations were reported from Oahu Island on Ligustrum japonicum in 2004, and on Pittosporum tobira in 2008.
Kondrat says you typically need to water an orchid every 7 to 10 days, but he cautions that’s a general rule of thumb and your orchid might need a different watering schedule.
However, I was able to keep my orchid alive for over two years using the ice cube method of watering. It entailed putting two large ice cubes, give or take, once a week into the pot.
These orchids grow flower spikes, leaves, and aerial roots from a single growth point on that stem. Phalaenopsis, or moth orchids , fall into this category, as do vanda orchids.
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 ...
In larger amounts though, they can induce leaf drop. In recent years, some of the mealybug species have become invasive pests in localities posing a great problem to the new agro-ecosystems . In India , Withania somnifera plant have been reported as a new reservoir host for an invasive mealybug species Phenacoccus solenopsis .
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