Death of unopened flowers in cattleyas
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  #21  
Old 08-18-2019, 02:56 PM
Merita Merita is offline
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Death of unopened flowers in cattleyas Female
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I'm confused. You're telling us that the two flowers are from the same plant? Are you sure it's not two plants in the same pot? Because each flower looks normal if we were discussing different plants. If they are from a single plant, surely not from the same pseudobulb. Label the pseudobulbs and see if it happens again next blooming season. Keep a record, take close-up photos of flower details and the plant.

And what do you mean by "pod"? Pot? Pseudobulb? Sheath? "Pod" usually refers to a seed capsule.

I think we are discussing two different problems. The first being flowers aborting and the second is different looking blooms on what seems to be one plant (the normal flower looks different between the two pics, too.) Are the pictures on the first page of the same flowers as on the second page?

Back to the original problem. After the buds drop, have you looked for pests?
The theme is the death of flowers when they are going to open. The first photos I put are those that have not yet opened and already a flower is dying. The second photos are from another plant that did the same to me but she took out a sheat with a normal flower and the other one deformed, the second sheat aborted the two flowers. The color change is because it opens orange until it reaches true red about two days later, I took a picture of the flower after it rains so it looks full of water. I keep a record of all cattleyas, with photos of the flowering and dates. In this year I have had less flowers in some plants and an advance in flowering time. On insects I can only fumigate because they are outside, and yes, I have seen thrips but the insecticide I have found is in dust and does not say that any solution can be made, if you can guide me with this, I would appreciate it. Greetings.
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  #22  
Old 08-19-2019, 05:05 AM
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SouthPark SouthPark is offline
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I took a picture of the flower after it rains so it looks full of water.
Do your orchids grow outdoors? And did you get much rain recently? If so ----- then could maybe consider whether or not water got caught up either inside any sheaths, or in the gap between pseudobulb and the pseudo-bulb's outer covering (- the covering that usually splits and peels away naturally). Sometimes, if water gets trapped in some places, it might lead to some issues. This might not be what's happening. But could take a look into it.

Merita ----- for all photos - see if you can resize them to 1024 pixels across in the horizontal direction before uploading ----- just to make the photos big enough for details to be clearly seen.

Last edited by SouthPark; 08-19-2019 at 05:09 AM..
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  #23  
Old 08-19-2019, 10:37 AM
Merita Merita is offline
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Do your orchids grow outdoors? And did you get much rain recently? If so ----- then could maybe consider whether or not water got caught up either inside any sheaths, or in the gap between pseudobulb and the pseudo-bulb's outer covering (- the covering that usually splits and peels away naturally). Sometimes, if water gets trapped in some places, it might lead to some issues. This might not be what's happening. But could take a look into it.

Merita ----- for all photos - see if you can resize them to 1024 pixels across in the horizontal direction before uploading ----- just to make the photos big enough for details to be clearly seen.
Yes, they have received enough rain, sometimes I can protect them and sometimes not. The cover of the pseudobulbs, I open it when it is filled with water so that it does not accumulate. Sometimes a flower dies and the other opens in the same sheat. Perhaps there are several factors that are affecting flowering and I have seen thrips, ants and some mites. There are three plants that have sheats opening, I will put them here to see how they are. Greetings.
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  #24  
Old 08-24-2019, 11:21 AM
Merita Merita is offline
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I return to the issue to put the flowers they are opening, they all have as bites of insects and where the sepalous do not get to cover the whole flower the problem becomes greater. I have seen yellow and black mosquitoes, thrips, and other rare insects, not in quantities but since they are outside, they are exposed to everything. The Orthene here is a powder for fire ants and does not accept water to dissolve. For Amazon they are selling one at 97% that I don't know if it could be used for orchids. If someone could put a picture of another insecticide, I would appreciate it. Thank you all.
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  #25  
Old 08-24-2019, 05:16 PM
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Merita --- have you got carbaryl and/or bifenthrin? These don't have staying-power, but applying them during times that count can definitely help ward-off the biting animals. Can keep them at bay. You can test them on a single orchid flower to begin with. These products won't harm the orchid when sprayed at the recommended dosage/concentration.
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  #26  
Old 08-24-2019, 05:58 PM
Merita Merita is offline
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Merita --- have you got carbaryl and/or bifenthrin? These don't have staying-power, but applying them during times that count can definitely help ward-off the biting animals. Can keep them at bay. You can test them on a single orchid flower to begin with. These products won't harm the orchid when sprayed at the recommended dosage/concentration.
I don't have those products but I can buy them, I was looking for the Orthene because it was the one they recommended. I also thought of the malathion. I fear insecticides because once I used one that was for roses and killed many phals, that's why I ask now. I'm going to Home Depot to see if they have those. Thank you very much for your help.
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  #27  
Old 08-24-2019, 06:35 PM
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I have used Orthene and had no bad effects. Bayer Advanced 3-in-1 was great, but the formulation is no longer for sale, They have another formulation that they're now selling in place of it... I can't vouch for the efficacy because I haven't tried it (when imidacloprid started showing up on "banned" lists I laid in a rather large supply of the original formulation so I'm set for several years, I use the stuff very sparingly and surgically for specific problems, not as a preventative) But the new Bayer product is worth a try as a broad-spectrum pesticide that doesn't seem to harm flowers. (If you get that, let us know whether it does the harm to bugs that it is supposed to)

I looked around, I think the new product is called BioAdvanced 3-in-1 Insect Disease and Mite Control Concentrate, there's also a dilute "ready to use" form (not cost-effective if you're going to use much of it but might be OK if you just want to try it)
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  #28  
Old 08-24-2019, 06:50 PM
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Merita --- I forgot to mention. For spraying - put on the correct kind of filter mask (mouth mask). Some products are said to be not-harmful to humans, but always a good idea to use breathing protection anyway in my opinion.

If you do spray flowers, I think it's best to use the finest of fine misting sprays ----- like the ones that some hair-dressers use. These aren't the regular spray bottle types. Instead, they have some other kind of nozzle that ejects super fine mist. This can help avoid big water droplets from forming on a flower, which could in turn lead to unwanted marking etc. I know that in nature water gets on flowers, and some people even put water on their flowers to get some more features into their orchid flower photo. But I think that too much water on orchid flowers is probably not great for prolonging the flower life.

Last edited by SouthPark; 08-24-2019 at 06:58 PM..
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  #29  
Old 08-24-2019, 09:45 PM
Merita Merita is offline
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I have used Orthene and had no bad effects. Bayer Advanced 3-in-1 was great, but the formulation is no longer for sale, They have another formulation that they're now selling in place of it... I can't vouch for the efficacy because I haven't tried it (when imidacloprid started showing up on "banned" lists I laid in a rather large supply of the original formulation so I'm set for several years, I use the stuff very sparingly and surgically for specific problems, not as a preventative) But the new Bayer product is worth a try as a broad-spectrum pesticide that doesn't seem to harm flowers. (If you get that, let us know whether it does the harm to bugs that it is supposed to)

I looked around, I think the new product is called BioAdvanced 3-in-1 Insect Disease and Mite Control Concentrate, there's also a dilute "ready to use" form (not cost-effective if you're going to use much of it but might be OK if you just want to try it)
I used to buy Bayer products, with one of them I made a killing of Phals because he fell into the roots, I still have them stored in the garage. Here I put these to see if any is the one you say, I remember there were several. If it's none of these, could you send me a picture of yours and the Orthene that you use? Greetings and thanks for your help.
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  #30  
Old 08-24-2019, 10:07 PM
Merita Merita is offline
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Merita --- I forgot to mention. For spraying - put on the correct kind of filter mask (mouth mask). Some products are said to be not-harmful to humans, but always a good idea to use breathing protection anyway in my opinion.

If you do spray flowers, I think it's best to use the finest of fine misting sprays ----- like the ones that some hair-dressers use. These aren't the regular spray bottle types. Instead, they have some other kind of nozzle that ejects super fine mist. This can help avoid big water droplets from forming on a flower, which could in turn lead to unwanted marking etc. I know that in nature water gets on flowers, and some people even put water on their flowers to get some more features into their orchid flower photo. But I think that too much water on orchid flowers is probably not great for prolonging the flower life.
Do not worry about fumigation, I am very related to the products, my profession is Chemistry and I know what pesticides are and the risk of using them, I take the necessary measures and try to avoid them until cases like this. As the flowering plants at this time are only 4, I will separate them to fumigate the others that have sheats for the fall. I still haven't found the app to reduce the photos. Which one would you recommend? Greetings.
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