Just like the title says, it's just this one leaf. I'm aware there's around 5 monsteras in this pot. I bought it around 2 months ago & figured I wouldn't be able to untangle it. They seem to be fairly healthy, & it has pushed out 4 new leaves since purchasing, including a new leaf on the plant that has this ugly looking leaf.
I water when top 2 inches or so of the soil is dry, & use foliage pro with every watering. I have inspected for pest & have found nothing. I recently beat a spider mites infestation that I brought in thanks to my affinity for Majesty palms, but saw no signs of mites on this guy. I hung a preventative predatory mites satchet on him anyway, but still this leaf gets worse.
I also have sky lights that give a good amount of light to the whole room, & a grow light for a little bit of extra.
So any thoughts on what I might be doing wrong?
by Foreign-Mousse7306
3 Comments
Thrips. Cut this leaf off ASAP as well as any right under/touching it, get some spray for the rest and use systemic.
EDIT: Sorry that sounded more dramatic than I intended, of course your first step should be confirming that there are thrips on the leaf :p. Upload a clearer picture if you need help with that.
the one grey/brown rounded spot looks like thrips damage, but the yellowing and browning near the veins makes me also think watering related. watering when the top couple inches are dry seems like overwatering to me, these guys like their soil drier before watering again. I let my soil dry out completely before watering.
That said, still check for thrips. that one spot looks a lot like thrip damage
I think the mites found this leaf (and the one below it). When I look at it zoomed in, white dots and web trails. Helps to have a magnifying glass. Thrips don’t do this, they’re kinda invisible except for leaf damage.
Mites can hitch a ride, your clothes or watering can or even the dog/cat if you have a pet. You may not have noticed this beginning of an infestation. They haven’t had the chance to spin webs where the stem meets the leaf yet. A chance to get it under control.
Mites can survive in the soil for months and months too then come out later when it’s really warm and dry. I brought a new plant in, isolated it and thought it was alright until a summer heat wave 3 months later. Lesson learned! If you wipe this leaf underneath with soapy water and it’s gritty, it’s mites.