Mites species belonging to two common genera (Tenuipalpus and Brevipalpus) are known to attack economic plants and cause significant damages.

Tenuipalpidae, also called "flat mites" or "false spider mites", are closely related to the Tetranychidae. They are reddish, slow moving, and normally feed near the midrib or veins on the underside of leaves. Tenuipalpus pacificus attacks orchids.

Brevipalpus obovatus and Brevipalpus phoenicis attack over 50 genera of ornamental plants. 

In the two pictures below are mites of the Tenuipalpus genus

Mite of the Tenuipalpus genus

Mite of the Tenuipalpus genus

 

 

 

 

Brevipalpus phoenicis

 

The flat mite Brevipalpus phoenicis ( on the left ) has become established in numerous southern states of the USA, throughout the mainland from Florida to California, and also in Hawaii.

More on the Brevipalpus phoenicis in Wikiedia https://en.wikipedia.org/wiki/Brevipalpus_phoenicis#/media/File:Flat_mite,_Brevipalpus_phoenicis.jpg

More on the mites of Southeast Asia

http://www.acarology.org/asean/content/Tenuipalpidae.htm

http://pikul.lib.ku.ac.th/…/016%20Allies%20and%20Ins…/Mites/


Hoya and other plant collections are for sale on aleyagarden.com. Plant care information is available in various posts of this blog :
http://aleyagarden-blog.blogspot.com/2011/02/aleyagarden-blogs.html
Contact : aleyagarden@hotmail.com

A 100% survival when outside humidity was 30 % : inside humidity was maintained at 85% in the grow room

Aleyagarden has sent in June to the USA many Hoya non rooted cuttings by EMS parcels to a buyer who received them fast because he had an import permit ( not mandatory for only 12 plants ) . Despite relative humidity in June from 25 to 35 % in his town , he was 100 % successful ( a 100% survival rate ) mainly because he is using a grow room for rooting at around 26 Celsius and 85% humidity :

" I just wanted to let you know that my last two Hoya shipments, including replacements, got here without incident ( Aleyagarden note : replacements were a few cuttings sent at 50% of their price in the second parcel ) . The Hoyas that didn't travel too well the first time around did not travel well the second time around either, but the survival rate will be 100% nonetheless. For whatever reason, Ischnopus had the roughest time. The second time around it arrived with no leaves, but what I was able to keep going has rooted well and is sending out leaves and vines on two partial cuttings. Overall, many of the cuttings I received have started producing leaves and vines in a little over a month. I've been running my grow room at 80 degrees and 85% humidity during the day and some things are growing like weeds. The fastest being Graveolens, UT-001 and Austrailis White Margins. Megalaster lost many leaves but even the bare vines started rooting in 4-5 days. So I'd say that my orders were successful. " 

See why a humidity deficit of 20 % impacts plants much more at 35 Celsius than at 20 Celsius

 See how much humidity is in your location

Hoya and other plant collections are for sale on aleyagarden.com Plant care is available in various posts of this blog. Contact : aleyagarden@hotmail.com