insecticide?

what is better neem oil or pyrethrum?

It depends on what you're trying to control. I also avoid oil-based insecticides once the plants are flowering. The nice thing about oils is that their action is physical rather than chemical, but Pyrethrins, Neem and other oil-based insecticides, Spinosad, and BT all have their uses. The biggest thing I would be careful about with spinosad and pyrethrin is that they work on pollinators too.

i used pyrethrins and seems like my girls do not like it

Is your insecticide just pyrethrin or does it contain piperonyl butoxide, or any synthetic pyrethroids? Pyrethrins shouldn't affect the plant; they don't usually last very long in the environment because they break down in light so easily.

If they're in vegetative growth you can try something oil based instead. What are you trying to control? I wouldn't spray anything until I had an idea of what I was actually trying to stop.

When I had pest problems, Safer Soap in a spray bottle was my organic go to.

Assuming the Pyrethrin doesn't have any additives it is organic (it's effectively a concentrate of natural products). Insecticidal soaps and oils are relatively gentle with a physical mode of action. Assuming it's not extremely hot out there, those are a good place to start. If you're having trouble with bud worms, BT is definitely worth trying. I personally don't use pyrethrins or spinosad but that's just because my yard has more than cannabis in it and I don't want it to affect the pollinators.

The Xerces society for invertebrate conservation has a list of common organic-allowed pesticides you can look through if you're interested (pyrethrin is one of them).

yeah maybe it could be just due to the heat and just a coincidence it happened after i used it thank you guys being very insightful

tkmk said:

yeah maybe it could be just due to the heat and just a coincidence it happened after i used it thank you guys being very insightful

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No problem, I also found this excerpt from growweedeasy that talks specifically about using pyrethrum/pyrethrin to control spider mites:

This spray is hard on spider mites, but the main ingredient Pyrethrum can also be hard on plants, especially in tight spaces without much ventilation, so keep it as a last resort if possible. Use with extreme care around humans as the ingredients can be toxic. Never use Pyrethrum-based products on your plants while your grow lights are on as it can burn your plants. Avoid using Pyrethrum products on young or sensitive plants as they can get burned even when the lights are left off.

Do cover your grow lights and vents when bombing your plants with Pyrethrum and make sure you give the area at least 24 hours to air out before you try to breathe the air. This spray can work well for a couple of plants, but you’ll want a Pyrethrum fogger if you have a lot of plants to treat. Outdoors, Pyrethrum can kill beneficial insects too, so keep that in mind if you’re using natural predators to control pests (like ladybugs). All that being said, this spray will work to get rid of most spider mites, and it kills them on contact. Pyrethrum kills spider mites but not their eggs, so this product usually needs to be used 2-4 times (once every 2-3 days) to stop the breeding cycle and get rid of the toughest infestations."

Outside it shouldn't be much of an issue breathing it because of how quickly it'll degrade and how much better ventilated it is than inside. I would only use it if you know you have an infestation of something that you absolutely have to get rid of (like spider mites).

damn there is going to be alot of info i need to learn to be really good this is my first grow ever and oh boy do i feel like a newbie lol

Everyone goes through it; especially if you don't know anyone local with more experience. Nobody grows their best stuff on the first go.

yeah really suck no one i know grows

tkmk said:

yeah really suck no one i know grows

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well, at least you've found the right forum i was really afraid to use any pesticide or insecticide on my ladies tbh. as you know i use pyrethrum, coz you follow my journal. i know neem is a no no on buds, maybe for soil drench its ok. i use the pyrethrum once a week, instead of the 3-4 days recommended, coz as i said im kind of afraid to not make my precious toxic lol. im gonna stop it in the last 2 weeks deffo, and im going to wash them regularly, i spray with water everyday usually, and its raining 15 times a day in England as well ffs lol good luck man