Holes in leafs - do I have to worry?

[GreenBean]

Thank you for your answers. I found something with BT, so will try to get that. But it seems that you have to be very carefully (lot of precautions mentioned when used), so I wonder if it's ok to use it with flowering plants as well. 2 plants will need probably another 5-6 weeks (about 3 weeks of flower), the 2 smaller ones 6-8 weeks (maybe 1-2 weeks of flower).

No I wouldn't use it in flower. The only thing I can recommend for certain things in flower that I have actually used personally is Dr Zymes. It can help to a point with certain insects. Depends on the infestation levels. If you go to the Dr Zymes site, they will send you a free sample.

My last outdoor grow was photos and some got to be 12' tall and 6-7' wide, there are some photos around here somewhere on the forum.

Point being - Infestations can get out of hand really fast. Especially if they get to a point where the plant is really weakened. At that point, it's a free for all, tag team for every insect in your neighborhood.

You may want to invest in some insect netting to make life easier for yourself after you spray. The only thing I will recommend is keeping an eye on it. Make sure the plants are clean before you put the net on. And I have had birds get their claws caught in the netting before so keep an eye out for that. And always inspect the plants, because certain insects are sneaky and will find a way in.

 

[420autoflower]

Try to spray your plants with BT as soon as possible… preventative applications is the key to dealing with caterpillars.

Caterpillar damage

 

[GreenBean]

Try to spray your plants with BT as soon as possible… preventative applications is the key to dealing with caterpillars.

Caterpillar damage
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Been there. Sucks hard. I have had plants where the entire plant was wasted. Even the "good" buds were loaded with caterpillars. One of the worst experiences ever.

 

[Powertotheflower]

thanks for your help! on the first and the last picture I posted you can see the pistils of the plant. I'm not sure if it's preflower or first week of flower. 2 of the plants are defenitly in full flower though, but the biggest isn't effected at all, the second biggest just a little bit. but what you wrote about your experiences and sounds dreadful and the photos prove that.
Just looked at Dr. Zymes - seems to be a good stuff, but not avaible in Europe. Amazon could send it until mid August
I will go to the local growshop tomorrow. Maybe they have something I could use.

 

[Powertotheflower]

You can use Dr zymes eliminator and lost coast plant therapy up until harvest

lost coast plant therapy is also not avaible in Europe unfortunatly