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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 ...
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 ...
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Sooty mold caused by scale on a Eucalyptus dives. Sooty mold (also spelled sooty mould) is a collective term for different Ascomycete fungi, which includes many genera, commonly Cladosporium and Alternaria. [1] [2] It grows on plants and their fruit, but also environmental objects, like fences, garden furniture, stones, and even cars.
Moth orchids, also called phalaenopsis orchids, which are commonly sold by florists and big box stores, can last for a couple of months, says Justin Kondrat, lead horticulturist at the Smithsonian ...
Note also the fuzzy white scale insect in the center. Durians are an agricultural product affected by many plant pathogens and pests . Most of the information here concerns Durio zibethinus , the major commercial species, but a dozen species in the genus Durio are edible durians, and several of those are also grown commercially and these ...
Mealybugs are insects in the family Pseudococcidae, unarmored scale insects found in moist, warm habitats. Of the more than 2,000 described species, many are considered pests as they feed on plant juices of greenhouse plants, house plants and subtropical trees and also act as a vector for several plant diseases.
Find out how to prune orchids of all types, and when to do your pruning to encourage fresh growth and more blooming.