I have been doing some research on riu to figure out why i have a few yellowing leaves. Then i found out that fungus gnats can cause what appears to be nutrient deficiency. i have been seeing 1 or 2 every time i water. i put up fly ribbon to solve the problem. before researching i thought that was all i needed to do. i am thinking about using neem oil since lowes near my house sells it. i have been wondering about using sand to kill larva. i read on a thread that a foam plate cut to size so that the soil is covered will work like sand. i do not see how this is possible so if anyone can help explain that would be nice. so i guess i will get to my questions.
How much neem oil do i need to use and how often? do i just follow the directions on package?
how deep should the playground sand be and should i use some type screen to make it easier to remove before my next watering? also, if anyone has any better ways or removing the sand let me know.
i have also read that using black aquarium rocks. can work in place of sand?
I do not know if it is important but here is my set up.
-soil mix is: 60% scotts topsoil, 25% perlite, 10% vermiculite, and 5% worm casting, blood, and blood meal.
-currently using 2-100w cfls per plant.
-i am just over 3 weeks since seeds broke the surface.
-i water about every 3 days depending on weight or pots.
How much neem oil do i need to use and how often? do i just follow the directions on package?
how deep should the playground sand be and should i use some type screen to make it easier to remove before my next watering? also, if anyone has any better ways or removing the sand let me know.
i have also read that using black aquarium rocks. can work in place of sand?
I do not know if it is important but here is my set up.
-soil mix is: 60% scotts topsoil, 25% perlite, 10% vermiculite, and 5% worm casting, blood, and blood meal.
-currently using 2-100w cfls per plant.
-i am just over 3 weeks since seeds broke the surface.
-i water about every 3 days depending on weight or pots.