Anyone know yucca plants? My tree's sick!?

Within the last week or ten days, my Mojave desert-type yucca has contracted a bad bug that's killing the spiky leaves, turning them brown. There are masses of spidery-webs between the leaves and a powdery brownish deposit that looks like sawdust on the webs/affected leaves.Could this be the bug on my dwarf citrus as well?





Is this some kind of spider-mite infestation, or some kind of scale insects? What treatment is available and can I save the bushy spiked 'heads' if they're already covered with this stuff? Or is massive pruning necessary? I've only used the high pressure water hose to try'n combat this attack-any idears?

Anyone know yucca plants? My tree's sick!?
Yes! pruning is necessary , I hope it's not to late...through.


also try not to water it too much . When I lived in Joshua Tree,


this certain type of sm. beetle would attack the yuccas' %26amp;


the Joshua trees....... but the trees would never recover.


Call joshua Tree wildlive (or) the living desert ,,,they'll tell ya what to do..


Ms.kate
Reply:I am unfamiliar with yucca plants. However, I wish you the best of luck.
Reply:wash the plant with milk , it dose revitalize and contain calcium
Reply:Hi, I'm familiar with a Yucca tree, They are not that prone to insects but when they does it's sometimes hard to reach coz they usually at tact the growing point of the plants. I suspect in your case that its infested by red-spider mites. it usually forms a web, Spider mites and other mites are microscopic in size and therefore difficult to see, They thrive in hot dry areas.





Here is what i did, Wash off infestation with a strong stream of water, If necessary spray with insecticidal soap or dog shampoo, if it is really worst spray miticide as a last resort.





Good luck!