HELP! think iv got bugs and other problems +rep

hi all so i recently joined the world of coco and was all going well untill i spotted some leaves that looked eaten. there is also dark patches on the leaves dark green n colour.also getting little brown spots on some leaves. iv looked around the plants but cant seem to find any bugs. the one plant also is yellowing from the bottom up when i touched the yellow leaves they just fall off. does anyone know what is attacking my plants or do i have some sort off deficiency?

grow info
medium- 75% coco, 25% perlite
nutes- canna coco a+b,rhizotonic,cannazym, superthrive
system- autopots with air domes, nutrient heater and air stone in res
humidity- 40-50%
temps- 60-77
two larger plants are 6 weeks from sprout
two smaller plants are 3 weeks from sprout

currently feeding the larger plants 2.5ml/l canna a+b, 2ml/l rhizotonic and 2.5ml/l of cannazyme ec- 1.4

need anymore info just ask. thanks

iv currently just sprayed all plants with provado ultimate bug killer do you guys think this will help??

label says: A fast-acting & systematic home garden insecticide for use on flowers - fruit - vegetables and herbs to control the following pests: Greenfly Blackfly Leaf beetles Whitefly Scale insect Wooly aphid Thrips Sawfly Leafhoppers Reduces feeding damage by Caterpillars

It really depends on what bug you have.

You need to get yourself some sticky traps and place them at plant level where the damage has been happening, at the top of your pots and also at the bottom of your pots and i tend to stick some to the walls of my grow room too.

The first cause of action in bug control is IDENTIFICATION.

If you want something that wont hurt your plant (the provado i found causes burning) just get something with neem in it for now until you can determine whats causing this issue.


In the meantime you havent mentioned your pH of everything you are using?

I have seen pH issues cause some funny things but your leaves look munched!

One thing i would say is that arent the AUTOPOTS bottom feeding systems?

If so you could have salt build up issue as COCO should be watered so that you get 20%runoff out of the bottom of your pot. As you pots are bottom feeding this could be a problem.


J

hey thanks fo the reply i have some sticky traps so il put a few of them where you suggested. i ph my nutrients to 5.8. i noticed salt buildup on top of the coco lastnite so i put a weak nutrient solution ph 5.8 through the top of the pots the drained the runoff to waste and re introduced my normal nutes. il let you know if i find anything on the traps. do you know of any products containing neem oil that i can buy?

Neem Repel, Genious oil,

Unsure where you are located but a hydro store should sell some Neem based products.

I wouldnt use the autopot next time , look into drippers if you like the automated side of things, WILMA 4 for example .



J

thanks il contact my local hydro shop tuesday to see what they got. i want a system like wilma 4 but my grow tent is only 120cm high so i need a system that is low to the floor. thanks for the responses jondamon

honestly it looks like wind burn to me