rajul
New Member
Please look at the attached picture and advise what I need to do to save this tree?
Thanks,
Thanks,
arborvitae trees browning
- Thread starter rajul
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On small plants, sometimes the best control is to wait until the worms are large enough to see and then pick them off by hand.
“Even when they’re mature and hanging in their bag like a Christmas tree ornament, you have to look closely to get them all,” Stites warned. “They do spend the summer camouflaging themselves.”
Where hand-picking is impractical, spraying with Bacillus thuringiensis is an alternative natural control method – if the worms are still small. Bt is a naturally occurring disease of lepidopterous species such as bagworms.
Commonly used inorganic insecticides are Orthene, Malathion and Sevin.
“No matter the type of spray, however, thorough coverage is a must, Stites said. “If you can’t reach all of a large evergreen, bagworms eventually may kill whole sections of it.”
A photo to help in identifying bagworms while they are still small and most vulnerable is on the Web at http://www.oznet.ksu.edu/dp_hfrr/extensn/problems/bagworm.htm.
“Even when they’re mature and hanging in their bag like a Christmas tree ornament, you have to look closely to get them all,” Stites warned. “They do spend the summer camouflaging themselves.”
Where hand-picking is impractical, spraying with Bacillus thuringiensis is an alternative natural control method – if the worms are still small. Bt is a naturally occurring disease of lepidopterous species such as bagworms.
Commonly used inorganic insecticides are Orthene, Malathion and Sevin.
“No matter the type of spray, however, thorough coverage is a must, Stites said. “If you can’t reach all of a large evergreen, bagworms eventually may kill whole sections of it.”
A photo to help in identifying bagworms while they are still small and most vulnerable is on the Web at http://www.oznet.ksu.edu/dp_hfrr/extensn/problems/bagworm.htm.
