Questions tagged [diseases]

For questions related to plant diseases.

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14 views

Is this image shows my strawberry plant have Leaf Scorch fungus infection?

I have brought new strawberry plants, they seem to have black dots even for green leaves. I can see a lot of dead leaves with these marks, is this a fungus infection? Based on my research is Leaf ...
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1answer
498 views

Does it make sense to spray a soccer field for ticks?

I work at a school in an area with a high incidence of tick-borne diseases (even the one that makes you allergic to red meat!) and some parents have asked the school to spray the grounds for ticks. I ...
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0answers
24 views

Suspecting pear fireblight but not sure.Any help appreciated

We have several fruit trees in our garden but having fruiting problem only with a pear tree.It is maybe 8 years old, every year has fantastic blossom but after the flowers turn into tiny fruits they ...
2
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1answer
25 views

Unexpected wilting and leaves curling in a serrano pepper plant

About 5 days ago, I noticed that one of my 5 serrano pepper plants that a planted in a 10l container started to wilt a bit with some leaves that started to curl. After searching on the internet, I ...
1
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1answer
15 views

Is large vertical crack on the trunk of a shrub a sign of disease or old-age, and can this be reversed?

I just noticed one of my shrubs in the garden has a huge, vertical crack spanning almost the entire length of the plant. This plant has no issues and had a lot of foliage in previous years. Is this ...
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1answer
16 views

Fungus cross infection

My Dendrobium Nobile Apollon has fungus ... Is it possible that this fungus could infect other plants like my Hoyas?
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0answers
7 views

Need help with identifying peace lily root disease

My peace lily started dying, it's leaves were turning yellow and then brown from past 2-3weeks. I speculated it to be a root rot. Today, I took out the plant from soil and along with root rot, I found ...
2
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0answers
17 views

Please tell me the disease/issue with my mint plant

These mint leaves are pale yellow-green. Please tell me what is wrong with them with all the discoloured appearance. Pot-12~14 inch Soil mix-Old vermicompost~vermiculite~perlite mixed with about 20 ...
2
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1answer
17 views

Pawpaw bark damage after first winter

Young pawpaw tree (planted last spring as a stripling, so first spring post planting) has damage to bark and trunk. What could have caused this? Is there anything I can do to help it? Tree is in a ...
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28 views

Is this a citrus disease I should worry about or contact the gardening authorities

I came across a kumquat the other day that was delicious, so I took some cuttings (with the permission of the owner). the fruit still on the tree was completely unblemished; however, I'm unsure as to ...
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1answer
35 views

Are these potted mint plants healthy?

These are some mint plants (Mentha arvensis) that have been grown from grocery store edible mint stems planted in a 60~40 ratio of cocopeat-perlite-compost and garden soil. The new leaves around the ...
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0answers
14 views

Yellow/Brownish bottom leaves in Cycas revoluta

I have a Cycas revoluta with bottom leaves with yellow/brown spots. I guess it's probably related with overwatering. However, the pattern that I saw in internet pictures was a bit different. So, it ...
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32 views

Little indentations on tea plant

I spotted these on 2 new leaves of my camellia sinensis, the other leaves don't have these at all, its inside against a western facing window, watered every 4 days fertilized every 2nd month, I want ...
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0answers
22 views

Is this a disease?

I have planted a curry leaf sapling taken from a local nursery in a 10 inch pot in fresh store bought potting mix (cocopeat, perlite, vermiculite, sand, rice husk, vermicompost, neem extract). I put ...
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1answer
35 views

Small brownish spots on succulents | how to cure?

What disease/fungi/insect is causing this and how can I get rid of it? thanks in advance!
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1answer
41 views

How to help seedlings recover from tip burn

I germinated some seeds and I had the seedlings under a two new 40w LED grow light for a few weeks. I'm used to keeping florescent lights very close to the plants, but apparently this LED light is ...
1
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1answer
36 views

What caused the roselle seedlings to emerge like this?

I had planted some roselle seeds in a seed tray with an old mix of cocopeat, perlite, vermiculite and compost. The seeds were soaked in water before planting for some time. Now after eight days or so ...
1
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1answer
20 views

Seedlings have crispy, yellow tips

I germinated a variety of seeds and I now have the starts inside, under two full small spectrum LED lights. I'm using a couple different mediums. Some are in rock wool. Some are in a store-bought ...
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0answers
15 views

Yellow and brown spots on leaf tip

On a barley farm, there are yellow and brown spots on leaf tips. Possible causes: Some kind of parasite Weather condition Bad seed Looks like some farms using the same seed are affected What might ...
4
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1answer
37 views

Efficient way to sterilise soil

I have had issues with either bacterial spot/speck or early blight (I was not able to determine which it was) or both on tomatoes. They have been grown in containers. I have about 100-150 galons of ...
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0answers
14 views

Platycerium Superbum rapidly spreading black spot in the shield

Had this fella for nearly a year. As for watering, I wait for the moss to "dry out" meaning it's not crunchy and dry, but not feeling wet. The little white insects I spray off with the hose ...
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0answers
23 views

Yellow spots and yellowing on railroad creeper

I don't know what it could be. I know it's not under watered, and I've been trying not to over water, but the spots looks weird, like if it was some kind of fungi.
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18 views

My Peperomia has this little green dots

I recently got this plant from a nursery and when I got home, I realized it has these little dots all over it, is this some type of pest?
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2answers
34 views

Is it safe to use wood from a tree if it has a fungal infection?

Some ash trees have been cut down near where I work. I was thinking about taking some of the log sections for woodworking material, but I heard something suggesting that these trees might be getting ...
4
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1answer
48 views

Removing crumpled leaves from over exposure to light

I am currently preparing the seedlings for next springs growing in my garden. I have created my own green house - in theory with ideal conditions (full spectrum lights, high humidity, 30+°C all the ...
2
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1answer
32 views

What's killing my orange tree?

I've been spraying with neem oil and it hasn't been helping. I've attached pictures. It seems like something is killing the leaves from the bottom up. New leaves sprout but they get killed and eaten ...
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0answers
23 views

My Roses have disease gall?

I have noticed the discoloring of the stems of my roses. Do I have to remove the discolored stems? Aside from cleaning my cutting tools, is there anything I can do to prevent this?
3
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2answers
188 views

What is causing my peas to wilt?

I am an absolute beginner gardener, and I have been growing some Sugar Snap peas in a large pot. They started out seeming very healthy, but have recently slowed their growth to a near complete stop, ...
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0answers
33 views

What’s wrong with my snake plant leaves?

I recently discovered the tip of my snake plant had turned blackish and cut off from the rest of the plant, basically dead, the dead part feels moist and floppy. I don’t know what’s wrong if I’m under ...
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1answer
76 views

Parsley leaves losing colour/ white spots

My parsley and thyme leaves have started losing color. Does anyone know what might be the cause? They are slowly turning white. The plants have been in this container for a few years could the soil be ...
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0answers
31 views

Why are the leaves on my mango seedling turning brown?

Also the tiny new leaves (on the top of the plant) are falling off right after they pop up. Then the plant grows new ones and they fall off again. Is it because of overwatering? I also recently had a ...
2
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1answer
52 views

What disease is causing raised blisters on the leaves of my java plum tree?

Plant: Syzygium cumini. Appearance: blisters (gall) on both sides. After some time holes appear in the blisters. What kind of disease is this? This exists all year round and is not seasonal.
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52 views

Brown spots on avocado tree leaves

I transplanted my 7 years old avocado tree two months ago and since then it's condition continually worsened. First, the leaves lost turgor for a few weeks and I thought that this was over. ...
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1answer
44 views

What is the disease in my chilli plant where the leaves of only one plant is becoming yellow?

I have several chilli plants in my yard but out of these 10 plants only one plant is exhibiting this problem. These plants are almost 4 months old. Unable to find a match for the photos from any ...
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0answers
27 views

Cymbidium orchid - black spots on the leaves

I bought a cymbidium orchid two days ago. Today I noticed that about 30% of the leaves have black spots on their tips (see the picture). Should I be worried or is it something normal? If it's some ...
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0answers
23 views

My Areca Palm is browning

I've had this plant for the last five months and since then I had problems with insects in the begining and right after I got over that the plant is having another problem I can't identify. Can anyone ...
2
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0answers
43 views

Is my tree OK? (Bubbly effect on stem of Rainbow Eucalyptus)

We have a ~1 year old Rainbow Eucalyptus tree. It's now about 1 metre tall, and we've noticed a concerning 'bubbly' texture on most of its upper stems. The "bubbliness" is the same sort of ...
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0answers
18 views

Rose plant having problem

This is my new Rose plant I bought it last week from the nursery. I have already lost one last month. Leaves are turning yellow & brown. I only watered it once. I don't want to lose this one 🥺.
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0answers
26 views

Lemon tree drops its leaves

We bought this lemon tree about a month ago. It was in a good condition when we purchased it. At first, we placed it outside, and for the last ten days, we brought it inside, situated right in front ...
2
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0answers
20 views

What are these weird white spots and black spots on my Monstera?

I used a microscope on one of those black dots and took a picture. I also found this insect that looks suspicious. I don't know if the white spots are related to the black dots. What can I do?
1
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1answer
58 views

Meyer Lemon Tree Health Issues Help

I am a new Meyer Lemon tree owner. My trees' leaves have gradually yellowed, and started dropping. I thought they were under-watered, so I started watering more regularly, but that doesn't appear to ...
2
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0answers
74 views

Brownish marks on upper surface of chilli leaves gradually forming lesions

I have a young ghost chilli growing in a pot outside which is displaying browning on the upper surface (but not on the lower surface) of its leaves, primarily along the veins at the base of the plant. ...
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0answers
27 views

Why are my olive trees losing their leaves?

I have olive trees that I recently bought to replace my cypress that went sick (turning orange). Yet, my olive trees are losing their leaves, some branches are almost naked. It might not be related ...
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0answers
31 views

what fungus or bacterium is eating away at the leaves of my fava bean plant?

I am growing aquadulce fava bean plants and something is eating holes into the leaves. At first i thought this was caused by slugs but when i look closely i can actually see that the holes are ...
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0answers
32 views

7 years old Rose shrub giving shriveled up leaves and flowers

I live in South India ,we shifted into our new house 7 years ago and planted this dark pink rose soon after from a nursery .There were 2 of them, but one of them died soon after planting, from shock I ...
2
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1answer
63 views

Mandarin tree with yellow leaves and black spots (potted)

This grafted 'imperial' mandarin tree was planted in this pot over a year ago and is not healthy. Other plants at the store actually had fruit on them when I purchased this but it has never fruited. ...
2
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0answers
20 views

Browning at base of my cactus

I have had this cactus for a while now (about 4 or 5 years) and recently noticed browning near the base. The spines at the bottom are also a different color and pressed closer to the body of the ...
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0answers
29 views

Please help! Something bad is happening to my Monstrea Deliciosa

I have an urgent situation with my Monstrea Deliciosa. Yellowish stains appeared on the leaves last night. I watch the plant every day and I am sure they were not there yesterday. About half of the ...
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0answers
21 views

Olive tree leaves are turning brown but stays on the branches

We transplanted a mature olive tree way back March and it's been adjusting well on the new location. But starting mid of July, at the peak of summer here in Qatar, the leaves of 1 big branch started ...
2
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0answers
28 views

Which disease could be turning the leaves on my tomato plants BLUE?

The leaves are very dry (though the plants were watered regularly and consistenly), have this bluish tint and those brown spots. Googled, but found nothing, which is weird. What could this be?

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