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Anthurium Pest
Anthurium Thrips
The most serious pest of anthuriums is
the anthurium thrips, Chaetanaphothrips orchidii
(Moulton). In severe infestations, anthurium thrips
can damage every flower produced in infested shade houses. Anthurium
thrips invade the unopened bud soon after the bud emerges from
the stipules. The mature flower is deformed with white streaks
and or scarring on upper and or lower surfaces of the flower.
Anthurium thrips are also found in South America, Europe,
Japan, Puerto Rico, and Florida. Alternate hosts include alternanthera,
asystasia, bouganvillea, chrysanthemum, corn, night blooming
cereus, parsley, orchids, wandering jew, and several weed and
grass sp..
Anthurium thrips can be effectively controled with contact/systemic
insecticide sprays. An effective insecticide requires a minimum
4 - 5 insecticede spray applications at 2 week intervals or
7 - 8 weeks after initial spray applications. This 7 - 8 week
period is needed because flower buds already injured at time
of initial spray application are harvested 6 -8 weeks later
as injured flowers. Effective insecticides protect newly developing
anthurium buds from thrips injury during the 7 8 week period
of spray application.
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