I'm glad to report that the Malathion has the thrips under control for the moment and and my cattelyas are blooming in time for the Chinese Lunar New Year. Malathion doesn't seem to affect the yellow beetles at all with the recommended concentration of 12ml to the gallon(4 litres). The only way is to catch them and crush them before they do too much damage or lay their eggs. The larvae are the most voracious eating machines ever and are not affected by contact with Malathion or from eating blooms with Malathion residue. BTW in Malaysia pesticides are classified according to their toxicity and Class 3 & 4 are allowed to be sold over the counter.Malathion is Class 3. Class 1 & 2 are banned.Malathion is supposed to oxidise after 8 hours and rendered harmless.In the 60s dieldrin was widely used and was most effective. It killed everything from insects to snails to birds that pecked at the buds!! Of course it is universally banned nowOriginally Posted by Brutal_Dreamer
Oh, so sorry for the damage, but your blooms are still beautiful. What do you do about the yellow beetles? Does the Malathion also kill those pests or are you required to do something else?
Cheers,
BD
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