Sick Cacti - Pests, Diseases, etc.

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A note to new members: Make sure that you're posting in the right forum!

Last post by Steve Johnson « Sat Mar 27, 2021 11:06 pm

by Steve Johnson » Sat Mar 27, 2021 11:06 pm

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Last post by Steve Johnson
Sat Mar 27, 2021 11:06 pm
A note to new members: Please add location info to your member profile/signature

Last post by Jtwrigh « Tue Apr 11, 2023 11:51 pm
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by Steve Johnson » Mon Nov 18, 2019 4:18 am

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Last post by Jtwrigh
Tue Apr 11, 2023 11:51 pm
How to resize your photos BEFORE posting

Last post by Brokken « Sat Dec 28, 2024 10:31 pm
Posted in Cacti Identification
Replies: 59
by ElieEstephane » Fri Feb 02, 2018 6:19 pm » in Cacti Identification
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Last post by Brokken
Sat Dec 28, 2024 10:31 pm

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Mealies and flat mites and scale -- oh, my! (Updated 6/11/2022)

Last post by AirWreck « Tue Apr 08, 2025 10:37 pm
Replies: 139
by Steve Johnson » Mon Dec 31, 2018 12:46 am
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139 Replies

253654 Views

Last post by AirWreck
Tue Apr 08, 2025 10:37 pm
Hot bath against root mealybugs

Last post by FredBW « Fri Dec 01, 2023 12:42 am
Replies: 46
by mmcavall » Tue Oct 16, 2018 2:17 am
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46 Replies

125796 Views

Last post by FredBW
Fri Dec 01, 2023 12:42 am
Some fungal Diseases

Last post by hegar « Fri Jul 23, 2021 3:47 am
Replies: 8
by hegar » Sat Aug 11, 2018 6:32 am

8 Replies

60860 Views

Last post by hegar
Fri Jul 23, 2021 3:47 am
Root mealybug infestation

Last post by Nino_G « Thu Apr 17, 2025 8:21 pm
Replies: 22
by AirWreck » Mon Feb 17, 2025 4:52 pm
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14384 Views

Last post by Nino_G
Thu Apr 17, 2025 8:21 pm
Rot or Not? Please help

Last post by hoopgod32 « Tue Apr 15, 2025 6:14 am
Replies: 85
by CoolestGravy » Tue Jan 16, 2024 11:37 pm
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85 Replies

95769 Views

Last post by hoopgod32
Tue Apr 15, 2025 6:14 am
Trying to save a shriveling columnar cactus

Last post by Steve Johnson « Wed Apr 02, 2025 8:15 am
Replies: 49
by tbutler » Thu Mar 06, 2025 7:30 pm
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11394 Views

Last post by Steve Johnson
Wed Apr 02, 2025 8:15 am
fungal disease?

Last post by Ilvin « Wed Apr 02, 2025 6:47 am
Replies: 2
by grchristos » Tue Apr 01, 2025 4:44 pm

2 Replies

455 Views

Last post by Ilvin
Wed Apr 02, 2025 6:47 am
Cactus turning yellow entirely

Last post by Steve Johnson « Sat Mar 29, 2025 4:13 am
Replies: 15
by qiyao » Thu Mar 20, 2025 3:03 pm
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3600 Views

Last post by Steve Johnson
Sat Mar 29, 2025 4:13 am
16 year old cacti attacked by slugs and snails

Last post by jerrytheplater « Wed Mar 26, 2025 1:54 am
Replies: 2
by cactus-noob » Wed Mar 26, 2025 12:21 am

2 Replies

1400 Views

Last post by jerrytheplater
Wed Mar 26, 2025 1:54 am
Trouble with rooting a cutting

Last post by 7george « Sat Mar 22, 2025 6:23 pm
Replies: 5
by Russell99 » Fri Mar 07, 2025 7:58 am

5 Replies

3045 Views

Last post by 7george
Sat Mar 22, 2025 6:23 pm
Sick coryphantha

Last post by greenknight « Mon Mar 17, 2025 5:53 am
Replies: 5
by Jillz » Fri Mar 07, 2025 8:00 am

5 Replies

2779 Views

Last post by greenknight
Mon Mar 17, 2025 5:53 am
Can Anyone Diagnose Why My Cactus Is Declining?

Last post by jerrytheplater « Wed Mar 05, 2025 12:26 am
Replies: 9
by Theresa.L.Oceana » Fri Feb 28, 2025 4:39 pm

9 Replies

7041 Views

Last post by jerrytheplater
Wed Mar 05, 2025 12:26 am
Is this fungus?

Last post by Ravello19 « Mon Mar 03, 2025 12:46 pm
Replies: 9
by Ravello19 » Sun Mar 02, 2025 1:31 pm

9 Replies

4815 Views

Last post by Ravello19
Mon Mar 03, 2025 12:46 pm
frozen Euphorbia Lactea Candelabras

Last post by Steve Johnson « Wed Feb 26, 2025 10:28 pm
Replies: 4
by JoLynn » Tue Feb 25, 2025 3:23 pm

4 Replies

16848 Views

Last post by Steve Johnson
Wed Feb 26, 2025 10:28 pm
I cut my perfectly healthy cactus in half, wrongly assuming he had rot, and now he is dying! HELP!

Last post by MikeInOz « Tue Feb 25, 2025 4:11 am
Replies: 6
by Solar Echinopsis » Wed Sep 18, 2024 10:27 am

6 Replies

15745 Views

Last post by MikeInOz
Tue Feb 25, 2025 4:11 am
White fluid after cutting one of the roots of an ariocarpus

Last post by Russell99 « Fri Feb 14, 2025 6:26 am
Replies: 2
by Russell99 » Fri Feb 14, 2025 5:46 am

2 Replies

7778 Views

Last post by Russell99
Fri Feb 14, 2025 6:26 am
ORANGE RUSTY ROT?

Last post by Steve Johnson « Sun Feb 09, 2025 7:40 am
Replies: 2
by Cactus Blob » Sun Feb 09, 2025 12:01 am

2 Replies

8840 Views

Last post by Steve Johnson
Sun Feb 09, 2025 7:40 am
Rotting Stenocereus marginato crestato (marginatocereus)

Last post by AnDo « Tue Feb 04, 2025 7:12 am
Replies: 4
by AnDo » Sun Feb 02, 2025 5:09 pm

4 Replies

15884 Views

Last post by AnDo
Tue Feb 04, 2025 7:12 am
Advice needed on black spot treatment

Last post by Steve Johnson « Thu Jan 30, 2025 1:44 am
Replies: 44
by IsabellaKorzi » Sat Jan 11, 2025 11:23 pm
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49696 Views

Last post by Steve Johnson
Thu Jan 30, 2025 1:44 am
Melocactus problem

Last post by madkactus « Tue Jan 28, 2025 8:37 pm
Replies: 9
by gillinger » Mon Jan 20, 2025 7:10 pm

9 Replies

13912 Views

Last post by madkactus
Tue Jan 28, 2025 8:37 pm
Lophophora Fricii Help. Sunburn or Rot?

Last post by U4iK « Mon Jan 27, 2025 10:32 pm
Replies: 3
by U4iK » Mon Jan 27, 2025 2:57 am

3 Replies

12314 Views

Last post by U4iK
Mon Jan 27, 2025 10:32 pm
Some sick cacti

Last post by keith « Sun Jan 19, 2025 11:36 pm
Replies: 4
by oriky » Fri Jan 17, 2025 9:56 am

4 Replies

12776 Views

Last post by keith
Sun Jan 19, 2025 11:36 pm
Crust and black areas on one part of 7 foot cactus

Last post by Steve Johnson « Tue Dec 31, 2024 5:06 am
Replies: 1
by Nataliegayle » Mon Dec 30, 2024 3:08 pm

1 Replies

12789 Views

Last post by Steve Johnson
Tue Dec 31, 2024 5:06 am
Do you know what is this insect in my seedbeds?

Last post by jerrytheplater « Sat Nov 30, 2024 1:34 pm
Replies: 7
by yonnoy » Sat Nov 16, 2024 3:10 pm

7 Replies

15451 Views

Last post by jerrytheplater
Sat Nov 30, 2024 1:34 pm
Purple and orange spots on ferocactus

Last post by Ilvin « Tue Nov 26, 2024 2:30 am
Replies: 51
by Ilvin » Thu Sep 14, 2023 11:57 am
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73188 Views

Last post by Ilvin
Tue Nov 26, 2024 2:30 am
Split At Base - Pachycereus weberi

Last post by Steve Johnson « Mon Nov 18, 2024 11:27 pm
Replies: 10
by bfh » Sat Oct 26, 2024 5:02 pm

10 Replies

15887 Views

Last post by Steve Johnson
Mon Nov 18, 2024 11:27 pm
Fully buried offsets with new cactus

Last post by Ilvin « Sat Nov 09, 2024 2:52 am
Replies: 4
by Ilvin » Fri Nov 08, 2024 7:45 am

4 Replies

14469 Views

Last post by Ilvin
Sat Nov 09, 2024 2:52 am
Identifying rot

Last post by Steve Johnson « Sat Nov 02, 2024 7:52 pm
Replies: 9
by SpriteFish » Fri Nov 01, 2024 11:04 pm

9 Replies

15162 Views

Last post by Steve Johnson
Sat Nov 02, 2024 7:52 pm
I've got mealybugs and a couple questions.

Last post by greenknight « Fri Oct 25, 2024 9:16 am
Replies: 23
by CoolestGravy » Tue Sep 24, 2024 2:16 am
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23 Replies

25606 Views

Last post by greenknight
Fri Oct 25, 2024 9:16 am
Above ground mealybugs without pesticides

Last post by Steve Johnson « Mon Oct 21, 2024 9:31 pm
Replies: 20
by SpriteFish » Tue Oct 08, 2024 3:35 am
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20 Replies

25209 Views

Last post by Steve Johnson
Mon Oct 21, 2024 9:31 pm
Need help with sick seedlings.

Last post by Nino_G « Mon Oct 28, 2024 2:08 pm
Replies: 18
by Seedgrower » Mon Oct 14, 2024 7:49 pm
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18 Replies

44726 Views

Last post by Nino_G
Mon Oct 28, 2024 2:08 pm
Possible pest identification question

Last post by Steve Johnson « Thu Oct 03, 2024 10:18 pm
Replies: 3
by loyall » Sat Sep 21, 2024 8:09 pm

3 Replies

14221 Views

Last post by Steve Johnson
Thu Oct 03, 2024 10:18 pm
Clarifying Proper Execution of Systemic Mite & Mealy Treatment

Last post by Steve Johnson « Thu Oct 03, 2024 1:18 am
Replies: 19
by BrianD » Wed Jul 17, 2024 9:28 pm
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23827 Views

Last post by Steve Johnson
Thu Oct 03, 2024 1:18 am
Austrocactus seedlings - rot - tips?

Last post by DaveW « Fri Sep 06, 2024 8:29 am
Replies: 3
by ohugal » Sun Sep 01, 2024 7:29 pm

3 Replies

15061 Views

Last post by DaveW
Fri Sep 06, 2024 8:29 am
Dramatic change in my cactus

Last post by Steve Johnson « Thu Aug 29, 2024 10:01 pm
Replies: 5
by CaraR » Wed Aug 28, 2024 12:13 am

5 Replies

14779 Views

Last post by Steve Johnson
Thu Aug 29, 2024 10:01 pm
Is it rotting?

Last post by Cactusha « Thu Aug 29, 2024 1:39 pm
Replies: 3
by Cactusha » Wed Aug 28, 2024 6:39 pm

3 Replies

14246 Views

Last post by Cactusha
Thu Aug 29, 2024 1:39 pm
Flowers drying out before they bloom

Last post by CaraR « Wed Aug 28, 2024 1:43 am
Replies: 9
by CaraR » Thu Oct 12, 2023 12:29 pm

9 Replies

24726 Views

Last post by CaraR
Wed Aug 28, 2024 1:43 am
Chlorosis or worse? I need an adult

Last post by Steve Johnson « Fri Aug 09, 2024 9:10 pm
Replies: 9
by CoolestGravy » Fri Aug 02, 2024 1:13 am

9 Replies

18196 Views

Last post by Steve Johnson
Fri Aug 09, 2024 9:10 pm
Instead of imidocloprid...

Last post by ohugal « Fri Aug 09, 2024 5:52 am
Replies: 6
by fanaticactus » Mon Jul 29, 2024 8:21 pm

6 Replies

16676 Views

Last post by ohugal
Fri Aug 09, 2024 5:52 am
Help!! AZ New Cactus are Dying

Last post by FredBW « Sat Jul 27, 2024 6:20 pm
Replies: 17
by H20mobius » Wed Jul 17, 2024 6:38 pm
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17 Replies

27913 Views

Last post by FredBW
Sat Jul 27, 2024 6:20 pm
Sick Cactus

Last post by Steve Johnson « Thu Jul 25, 2024 12:20 am
Replies: 4
by BellaCactus24 » Wed Jul 24, 2024 4:28 pm

4 Replies

14163 Views

Last post by Steve Johnson
Thu Jul 25, 2024 12:20 am
Is this sunburn or something else?

Last post by Steve Johnson « Sat Jul 13, 2024 8:14 pm
Replies: 1
by majordude » Sat Jul 13, 2024 2:42 pm

1 Replies

13887 Views

Last post by Steve Johnson
Sat Jul 13, 2024 8:14 pm
sick cactus

Last post by Steve Johnson « Mon Jul 08, 2024 11:14 pm
Replies: 6
by piratehooker » Mon Jul 01, 2024 7:46 am

6 Replies

16430 Views

Last post by Steve Johnson
Mon Jul 08, 2024 11:14 pm
Need Advice: Rodent Bitten and Possibly Sunburned Lophophora Williamsii

Last post by U4iK « Mon Jul 01, 2024 4:24 am
Replies: 5
by U4iK » Thu Jun 27, 2024 11:50 pm

5 Replies

15463 Views

Last post by U4iK
Mon Jul 01, 2024 4:24 am
Sick 18ft Euphorbia ingens - any help appreciated!

Last post by AridWest_CatiGuy « Thu Jun 06, 2024 8:37 pm
Replies: 2
by AridWest_CatiGuy » Mon Jun 03, 2024 5:15 pm

2 Replies

13966 Views

Last post by AridWest_CatiGuy
Thu Jun 06, 2024 8:37 pm
Kalanchoe Beharensis covered in brown spots

Last post by Astrophyto « Fri May 31, 2024 11:49 am
Replies: 3
by Hero878 » Sun May 26, 2024 5:26 pm

3 Replies

14870 Views

Last post by Astrophyto
Fri May 31, 2024 11:49 am
Help my pelecephoria

Last post by vincent_cm « Wed May 22, 2024 7:06 pm
Replies: 10
by vincent_cm » Mon May 20, 2024 3:15 pm

10 Replies

18325 Views

Last post by vincent_cm
Wed May 22, 2024 7:06 pm
Can this cactus be saved?

Last post by Steve Johnson « Tue May 21, 2024 10:10 pm
Replies: 6
by Deejay » Sat May 18, 2024 1:57 pm

6 Replies

15686 Views

Last post by Steve Johnson
Tue May 21, 2024 10:10 pm
Base of cactus turning brown.

Last post by Aramidesaxi « Fri May 17, 2024 12:56 pm
Replies: 5
by Aramidesaxi » Sun May 12, 2024 7:34 pm

5 Replies

15602 Views

Last post by Aramidesaxi
Fri May 17, 2024 12:56 pm
Schlumbergera bridgesii disease or pest

Last post by anttisepp « Thu May 16, 2024 4:50 am
Replies: 4
by Sova1970 » Sun Apr 28, 2024 9:41 pm

4 Replies

15446 Views

Last post by anttisepp
Thu May 16, 2024 4:50 am

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