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Discussion in 'Pesticide & Herbicide Application' started by bob, Jul 24, 2004.
Thanks in advance.
the plant looks like Emerald N Gold Euonymus
the insect is euonymous scale
many control products,
talstar with some hort oil will smoke them...don't know if I'd trust sevin or orthene. Orthene ain't worth a crap on scale. Be sure to follow up....
talstar it the ticket
My $0.02 is Merit WSP and Oil. Oil will knock em down and Merit will keep em down.
oil' em baby. That is the key.
Think it may be a little warm for the oil?
Not a .5% solution of oil....
Use a Horticutural grade oil. It is more refined and has little or no sulfur in it. If you use dormant oil it will burn foliage because the sulfur content is to high. Horticutural grade oils should be applied on sunny days when humidity is less than 70% so the oil can dry quickly and not cause any phytotoxicity (injury) to plants. A 1-2% hort. oil spray w/merit as ric has mentioned will do a very good job for your first treatment. Find out when the next crawler stage for the euyonomus scale is in your area and check the plant again to see if there is any activity. If yes the crawlers are easy to control with a 1% oil spray. Scale seem to be a problem on these plants where there is heat stress or reflective heat stress from stone, foundations, driveways ect.
Foliar applied merit will give you about a month of protection and soil drench or soil injection at high label rate will give you a year to 1.5 years of protection....in the case of scale...supression.
I soil inject these plants every spring and monitor plants during crawler activity periods and spray them with 1% oil if needed. It works as a leaf polish also and makes the customers happy!
permistar 1/2 t. per gal.