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Last crop of the 2025 season / Whitefly

Arsonist

Active Member
Joined
Feb 4, 2023
Messages
70
I have the last plant left in bloom, and I have detected whiteflies on it. I have been trying to clean the underside of the leaves manually, but this pest reproduces extremely quickly, and there are some details that are worrying me and I would like to consult with you, my colleagues. There are parts of the buds that look very strange in terms of color, and the cause of this is the whiteflies. In fact, I have noticed that the plant's maturation has slowed down because at this stage the plant should already have more brown hairs, but I read that this pest delays maturation, so now I understand why it has taken so long. Regarding the parts of the buds that do not look good, with a dark color, should I cut them off right away? Or should I wait until harvest time and remove them then? In fact, I think I should harvest it very soon to avoid further damage and to be able to rescue the parts that are still healthy. Today I applied a little neem with potassium soap using a sponge, taking great care with the leaves. I didn't touch the buds or add anything to them. Anyway, I would like to know your opinion. Here are the photos.


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Hi @Arsonist
How long ago did the plant start flowering? It looks like it is still throwing lots of new white pistils and making new bud material.
 
Hi @Arsonist
How long ago did the plant start flowering? It looks like it is still throwing lots of new white pistils and making new bud material.
Today marks exactly 54 days in the flowering phase, but I'm going to leave an update on what I've been doing these past few days to try to revive it, with all the details and photos, of course, so you can see how it's doing.
 
The Double-Sided Yellow Sticky Traps are good for situation.
I buy the A4 size, cut into quarters and place in bread stands around the grow.
The insects hop between and get stuck.

EG: Staple a bit on each side of pot.

Regarding action, I think you've covered what could be done.
Any pruning of diseased material will weaken more than strengthen.

My opinion:
Smoke it or leave it alone and see what happens.

If these traps seem to work well for catching the adults that lay the eggs and suck the sap much more strongly, I will try to make some homemade ones and put coconut oil in them to see if I can catch them. In any case, I will post an update with photos in a few minutes so you can give me your opinion on how the plant looks.
 
Well, I'm checking the plant twice a day now, in the morning and in the afternoon, so I'm also putting pressure on the whiteflies to make them feel uncomfortable. I checked and it doesn't look like Botrytis, which I think is what you meant, but I'm not entirely sure. Anyway, here are some photos from this morning. but it's a bit difficult to clean because the stem can no longer support the weight of the buds. I put a stake in, but the buds are still very heavy. I think the plant looks better now, but it's been stressed, which is probably why it's been so slow to mature and has been delayed.

However, the plant as a whole doesn't look bad. Hopefully, I'll be able to harvest it soon, but I'll try to give it a little more time. A day ago, I applied neem + potassium soap to the underside of the leaves very carefully, trying not to touch the buds. Yesterday I gave it a rest and didn't apply anything, and today I plan to apply a little horsetail, which also works as an antifungal, but I'm not sure whether to wet the buds a little or just apply it to the leaves with a sponge. I'll decide later.

Today it reached 54 days in the flowering phase.

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