Has anybody got any experience in using this product?

I think you already did the math yourself. Stay away from it!

dude....do not use anything that is "systemic" at all. especially that has that long of a residual.

for sure...thanks guys...if you don't mind me asking...what exactly is wrong with "systemic"? would it be fine to use next year once the plants are down and have an established root system since they'd have the three months and then some? too many questions...but if you guys could help me with that i'd appreciate it

systemic means it's inside the plants system, not just on the outside. The chemical is present even if you wash the hell out of it.....get it?

In case you missed it, if its systemic it means it is absorbed into the plants whole system and stays there. It will be hard/impossible to flush out or wash off. Most pesticides you wanna be using break down or are washed off before consumption and do not linger in the plant, meaning you wont have to worry about smoking a pesticide. Systemic chemical pesticides are not something you wanna be smoking on mang.

Thanks guys that's all I needed to know

Study best practices for incorporating integrated pest management into your farm. For example you can rotate between diatomaceous earth, pyrethrums, and oil based insecticides (sesame oil, fish oil, neem, etc). It's also a good idea to capture & study the pests in your area so you can better target your threats. If your battling slugs, snails, or hornworms, it might make more sense to setup traps instead of spraying your plants. It also helps to use harsh methods early on then once they break down or leech away, you can incorporate beneficial insects and nematodes.

I like DE the most for seedlings, because some strains can burn from light applications. Even neem can burn plants if applied incorrectly or to early. DE will never cause toxicity with your plants and can easily be washed away.