Search results
Results from the WOW.Com Content Network
They are sites where a female has oviposited into developing flower buds or fruitlets. Despite the cosmetic damage suffered by these light skinned apple cultivars they are seemingly unaffected by most thrip vectored viruses. Infested apples of the mountain west simply provide a natural setting for Western Flower Thrips to thrive and reproduce.
Identifying Thrip Damage on Plants. Many types of thrips are specialist feeders that only target specific types of plants. However, some thrips are generalists that are equally attracted to ...
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 ] If a plant is also infected with the Cymbidium mosaic virus , it can lead to a condition called blossom brown necrotic streak.
Orchid blooms drop off eventually from natural causes, of course, but if the flowers are falling off prematurely, there may be a problem. 1. Sudden Temperature Changes.
The western flower thrips [Frankliniella occidentalis (Pergande)] is an invasive pest insect in agriculture. This species of thrips is native to the Southwestern United States [ 1 ] but has spread to other continents, including Europe , Australia (where it was identified in May 1993 [ 1 ] ), and South America via transport of infested plant ...
Find out how to prune orchids of all types, and when to do your pruning to encourage fresh growth and more blooming.
Black rot on orchids is caused by Pythium and Phytophthora species. [1] Black rot targets a variety of orchids but Cattleya orchids are especially susceptible. [1] Pythium ultimum and Phytophthora cactorum are known to cause black rot in orchids. [1] Pythium ultimum is a pathogen that causes damping-off and root rot on plants. [2]
Angraecum, also known as comet orchid, [2] [3] [4] is a genus of the family Orchidaceae native to tropical and South Africa, as well as Sri Lanka. It contains 223 species . [ 1 ]