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#16
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1. I have never had any luck getting rid of mealies with smoke or aerosol
bombs. I have always had to use a spray/drench routine repeated a couple of times to achieve complete mealie annihilation. 2. In addition to the aerosol, Knox-out used to come in quarts which when mixed with water made a very effective mealie spray/drench. I do not think it is available any more as I though all diazinon products had been put out of production. Duraguard (microencapsulated dursban) is also very effective, but it has been moved to the restricted use list. Malathion and sevin are effective against mealies, but I think greenhouse use labeling has been removed from both. None of these chemicals should be used in a house and their effectiveness is only as good as the spraying/drenching. Repeated applications is required for all and mealie resistance is possible. Imidacloprid seems to be the recommended replacement for diazinon and dursban and it is labeled for mealies and greenhouses. I do not know how effective it really is, but it is getting good write ups. The local Home Depot and nursery centers are carrying many new products based on imidacloprid and the price seems to be dropping. 3. If you have Phals, be careful with orthene this time of year. In the plant, systemics are mostly moved to where the plant is actively growing and for phals this time of year that is the new bloom spike. The concentrating of orthene in the juvenile spike can lead to a much higher than normal rate of color break flowers and other flower mutations. I avoid orthene from Sept to April. I do not have much experience with orthene and paph flower mutations, so you will have to rely on input from other growers. 4. Some members of this group have reported success on meallies with enstar. I have never achieved any thing better than suppression with it used alone. "Ray" wrote in message ... I have used both Knox-Out (microencapsulated diazinon) and microencapsulated Orthene bombs. I am not convinced that they are as effective as a good soaking with spray. It seems logical though, as it's easier to apply a spray under leaf surfaces... -- Ray Barkalow - First Rays Orchids - www.firstrays.com Plants, Supplies, Books, Artwork, and Lots of Free Info! . "wendy7" wrote in message news:t0%dd.56567$kz3.3630@fed1read02... There is an aerosol bomb insecticide for use in greenhouses but I lost the info. I know it was from somebody in our group & the cans were very expensive & had to buy in bulk? Hoping who ever it was reads this. -- Cheers Wendy Remove PETERPAN for email reply Noochka One wrote: Hi all, I'm new to the group so if this question has been recently asked and answered, please excuse me: Has anyone tried using a commercial "bug bomb" such as Raid or Black Flag to treat insect infestations on large numbers of plants? My collection of paphs has become infested with mealbugs and nothing I use seems to be having any effect. Can anyone offer any insight or suggest another method of treating these critters in bulk? |
#17
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1. I have never had any luck getting rid of mealies with smoke or aerosol
bombs. I have always had to use a spray/drench routine repeated a couple of times to achieve complete mealie annihilation. 2. In addition to the aerosol, Knox-out used to come in quarts which when mixed with water made a very effective mealie spray/drench. I do not think it is available any more as I though all diazinon products had been put out of production. Duraguard (microencapsulated dursban) is also very effective, but it has been moved to the restricted use list. Malathion and sevin are effective against mealies, but I think greenhouse use labeling has been removed from both. None of these chemicals should be used in a house and their effectiveness is only as good as the spraying/drenching. Repeated applications is required for all and mealie resistance is possible. Imidacloprid seems to be the recommended replacement for diazinon and dursban and it is labeled for mealies and greenhouses. I do not know how effective it really is, but it is getting good write ups. The local Home Depot and nursery centers are carrying many new products based on imidacloprid and the price seems to be dropping. 3. If you have Phals, be careful with orthene this time of year. In the plant, systemics are mostly moved to where the plant is actively growing and for phals this time of year that is the new bloom spike. The concentrating of orthene in the juvenile spike can lead to a much higher than normal rate of color break flowers and other flower mutations. I avoid orthene from Sept to April. I do not have much experience with orthene and paph flower mutations, so you will have to rely on input from other growers. 4. Some members of this group have reported success on meallies with enstar. I have never achieved any thing better than suppression with it used alone. "Ray" wrote in message ... I have used both Knox-Out (microencapsulated diazinon) and microencapsulated Orthene bombs. I am not convinced that they are as effective as a good soaking with spray. It seems logical though, as it's easier to apply a spray under leaf surfaces... -- Ray Barkalow - First Rays Orchids - www.firstrays.com Plants, Supplies, Books, Artwork, and Lots of Free Info! . "wendy7" wrote in message news:t0%dd.56567$kz3.3630@fed1read02... There is an aerosol bomb insecticide for use in greenhouses but I lost the info. I know it was from somebody in our group & the cans were very expensive & had to buy in bulk? Hoping who ever it was reads this. -- Cheers Wendy Remove PETERPAN for email reply Noochka One wrote: Hi all, I'm new to the group so if this question has been recently asked and answered, please excuse me: Has anyone tried using a commercial "bug bomb" such as Raid or Black Flag to treat insect infestations on large numbers of plants? My collection of paphs has become infested with mealbugs and nothing I use seems to be having any effect. Can anyone offer any insight or suggest another method of treating these critters in bulk? |
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