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Rose scale (order Hemiptera: family Coccoidea) Aulacaspis rosae – Mainly found on the stems and branches of the plant, lack of control will allow the pest to spread to flower stalks and petioles. At this point the plant would be stunted, spindly and with a white, flaky crust of scales on the bark.
Macrodactylus subspinosus. Macrodactylus subspinosus is a North American beetle of the family Scarabaeidae. The members of its genus are known as " rose chafers ", not to be confused with the European rose chafer, Cetonia aurata. M. subspinosus occurs from Eastern Canada to Colorado [2] and is considered a pest of many crops and flowers.
Diplocarpon rosae is a fungus that creates the rose black spot disease. [1] Because it was observed by people of various countries around the same time (around 1830), the nomenclature for the fungus varied with about 25 different names. [2] The asexual stage is now known to be Marssonina rosae, while the sexual and most common stage is known as ...
Macrosiphum rosae, the rose aphid, is a species of sap-sucking aphids in the subfamily Aphidinae. [1][2] They have a world-wide distribution and infest rosebushes as the main host in spring and early summer, congregating on the tips of shoots and around new buds. Later in the summer, winged forms move to other rose bushes, or to a limited ...
Rose powdery mildew [also known as 'Weeping Mildred'] is caused by the fungus Podosphaera pannosa, a member of the Ascomycete fungi.It infects a wide variety of roses, but especially those grown in dryer climates as the fungus has the rare characteristic that not only does it not need water to germinate and reproduce, it can be inhibited by it.
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Oxythyrea funesta. Oxythyrea funesta is a phytophagous beetle species belonging to the family Cetoniidae, subfamily Cetoniinae. Common name “ white spotted rose beetle ”. This beetle is present in most of Europe, in the eastern Palearctic realm, and in the Near East. Larvae are up to 30 mm long, they feed on plant roots and can remain until ...
Garden roses. The hybrid tea rose, ' Peace ' [1] Garden roses are predominantly hybrid roses that are grown as ornamental plants in private or public gardens. They are one of the most popular and widely cultivated groups of flowering plants, especially in temperate climates. An enormous number of garden cultivars has been produced, especially ...