Hi All,
Happy Week 4!
Pre-Flower! This week the plants started to show their first pistils along their stems. I topped dressed the earth boxes with a layer of worm castings and a layer of build a flower for an extra nutrition boost. The plants were watered twice this week: 1/4 gal/each on days 26 and 28.
I've noticed that the soil in the front corner of the boxes has been drying out. This is because the cover (for reasons I don't understand) has a pre-cut opening there, exposing the soil to the grow light. I can't see any feeder roots growing in the dry soil, and the earthbox jr is too small to have any ungrowable space. So I patches the opening with a piece of black trash bag. After, the soil underneath was no longer dried out. Hopefully some roots will grow in there over the next couple weeks.
Grow conditions are mostly the same this week: high-70s to low-80s during when the light is on, mid-60s during the night cycle. The grow light intensity was increased to 100% this week. I'm keeping the light ~ 16-18 inches from the top of the smallest plant (LA Kush Cake). This week, the humidifier was added. It is set to auto-regulate to a target VPD of ~1.10. With a leaf offset of -4 degrees, this works out to about 55%RH. Finally, the Zevo seems to have killed off all the gnats. There are no more flying around the tent, and I didn't see any when I uncovered the boxes to top dress the soil or to add the garbage bag patches.
Have a nice week!
I applied some beneficial nematodes a little over a week ago and the gnat problem has almost gotten under control. I might do another application later this week or next.
I also put up some sticky traps to catch the adult fliers.
@PartTimeUnicorn,
Love to hear that. Seeing those gnats in the tent is such a downer! The zevo that I put in the tent seems to have resolved the problem for me too. I haven't seen any new gnats in a few days.
I top dressed my soil two days ago because the plants were showing pre-flower. I didn't see any gnats crawling around in the soil when I pulled back to plastic cover sheet. Hopefully it holds up.
Have you had any issues with fungas gnats in the earthboxes? Seems like whenever I top dress, I get an infestation of them. I did add some beneficial nematodes recently and it seems to be helping.
@PartTimeUnicorn
Dude! Fucking YES!
I haven't put up my week 3 post yet, but I have started noticing them. I ran a power cord with a zevo bug catcher into the tent. It's quelled them but there's still a few stragglers. The bug catcher emits a blue light to attract the gnats. I use them in my house during the summer, especially near the sink and fruit bowl. They work well.
I had gnats in a lime tree pot a few years ago and used nematodes with good effect, but ended up changing the soil when I moved the plant outside the following spring. Otherwise I'm trying not to put more water in the basin than can be absorbed in a day or two. The fungal gnats drive me fucking crazy though!
The earth boxes are so damp that I think gnats are going to be a problem the whole time. I asked my GF for some of the milled mustard seed from build a soil for Xmas. Its supposed to kill of gnats and boost mycelial growth. Hopefully that helps. I'll let you know if it does.
Good luck hunting!