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Posted 2Y ago by @SaltySāmoan

What is this on my neon pothos?

Some kind of fungus or?? Also a couple leaves have been turning yellow lately
@SaltySāmoan do you think it cokes be excessive light exposure ? It looks different on every plant. Nonetheless it would be prudent to treat for fungus. Sterilize a pair of sharp scissors with Rubbing alcohol. Prune away any infected foliage. Next you want to apply an antifungal as a foliar spray to treat any sports on the leaves surfaces as well as the soil drench to treat the soil as the contagion is actually soil borne. The Clemson school of Agriculture has identified to antifungals that are effective for this disease, anti-fungal made with copper sprays as well as a bio-active treatment sold under the Brand name Bonide “Revitalize.” Either of these will do, but make sure you buy the concentrate, not the ready to use (RTU). The latter is great for the foliar spray but you will need the fungicide in as a concentrate to make a soil drench (unless you want to spend a lot of money using RTU in sufficient quantities for a proper soil drench). Follow the directions on the label.

Treating fungus can require several applications. Be sure to quarantine the plant, as the pathogen is contagious. In general, be careful with crowding too many plants together because that can create ideal conditions for a fungal outbreak without increasing ventilation accordingly. Wipe away an unnecessary moisture when you water and consider using pebbles as a top dressing to reduce exposure between the soil and the leaves.

Below are some tips on how to prevent fungus from occurring in the first place and how you can protect your other plants from contagion.

Hope this helps !

Tip: when I water my plants, I often put them in front of a fan or below a ceiling fan to whisk off any moisture can create landing pads for fungal spores.

Tip: the way that you water your plants has a big impact on whether they contract fungal diseases. A proper watering technique safeguards against leaf and brown spot and many potential pests and diseases. Use a watering can with a long spout. Position the spout underneath leaves and move in a slow methodical fashion so the water can saturate the soil as it moves across the surface. Be sure to keep the leaves dry. Once water starts coming out of the drainage hole , stop watering.

Tip: Preventing fungal infections through sound cultural practices (ensuring proper light, water, etc) is much easier than treating it. Whenever one of these care criteria are deficient, the plant becomes weaker and more vulnerable to pests and disease—stop a domino effect by matching Greg’s recommendations with the conditions you provide.

Tip: it is helpful to conceptualize plant care the way a hospital manages disease control: bacteria and fungal spores can be present on everything. Always sterilize and shears in rubbing alcohol prior to use. Sterilize saucers or anything else that can come into contact with a plant’s potting media as many fugal diseases are soil borne. Rubbing alcohol can be used to sterilize shears while a 10% bleach solution or a product sold under the label Physan-20 can be used to sterilize planters and everything else. (Available on Amazon).

Tip: fungal diseases are often soil borne so adding an inorganic top dressing like polished pebbles can create a physical barrier to prevent contagion. The 3/8” size I find are the ideal size and they can be obtained cheaper from pet supply stores like chewy.com as they are sold for reptile terrarium habitats.