In your opinion, which are the 3 worst pests in succulents?

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In your opinion, which are the 3 worst pests in succulents?

Aphids
12
2%
Fungus/Rot/Damping off
107
14%
Mealy bugs
193
25%
Mice
12
2%
Red spider mite
155
20%
Root mealy bugs
138
18%
Scale insects
31
4%
Sciarid fly
40
5%
Snails
42
6%
Western flower thrip
33
4%
 
Total votes: 763
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Pete A
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Re: In your opinion, which are the 3 worst pests in succulen

Post by Pete A » Mon Apr 11, 2011 12:41 pm

iann wrote:My bad. I fully intended to add a picture :oops:
caterpillar-120211.jpg
This is the same damn thing that just munched it's way through four of my smaller Ariocarpus! I followed the trail of eaten plants and found it curled up, sleeping off its large lunch.
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Flavio
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Re: In your opinion, which are the 3 worst pests in succulen

Post by Flavio » Tue Jun 28, 2011 4:38 pm

Interesting Poll. Just a thought..........How about a thread addressing the control of/treatment for the top three? It would also be a help to learn what members have as treatment plans to keep our collections looking healthy. :cac2:
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CactusFanDan
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Re: In your opinion, which are the 3 worst pests in succulen

Post by CactusFanDan » Sun Jul 31, 2011 5:17 pm

1. Fungus
2. Mealies
3. Scariad flies

I think i managed to remove mealies from my collection by removing effected plants and liberal sprayings of Imidocloprid. All pests are pretty foul if you ask me, though. KILL 'EM ALL!!! :twisted:
-Dan
Growing an eclectic mix of Cacti, with a few Caudiciforms and other Succulents. Also interested in African bulb plants.
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Dave_S
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Re: In your opinion, which are the 3 worst pests in succulen

Post by Dave_S » Mon Aug 15, 2011 11:25 am

Good idea Flavio....

Over the last 4 days (on and off) i've gone over my entire collection with Provado vine weevil killer2. Mixed at their recommended dose of 50ml per 1lt of water. Sprayed and used a small artists paint brush to dab any bad areas....all in all found about 60 with mealy :shock: ...All looking good now though :D

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Jim_Mercer
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Re: In your opinion, which are the 3 worst pests in succulen

Post by Jim_Mercer » Wed Aug 17, 2011 10:56 am

According to the RHS "Several species of mealybug occur in greenhouses or on houseplants. These include Pseudococcus calceolariae, P. longispinus and Planococcus citri." http://apps.rhs.org.uk/advicesearch/pro ... px?PID=201

The ones I have found on my Trichocaulon/Larryleachia are much smaller than those living on my Crassula ovata so I guess I have two species.....

Image
tric_bug_3545 by aCactus2008, on Flickr

Image
mealy_3593 by aCactus2008, on Flickr
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Re: In your opinion, which are the 3 worst pests in succulen

Post by Jim_Mercer » Wed Aug 17, 2011 12:02 pm

Having found the bugs and taken their picture next steps were

Physical removal

Image
stage1_3596 by aCactus2008, on Flickr

Chemical warfare

Image
stage2_3597 by aCactus2008, on Flickr

Scrub

Image
stage3_3598 by aCactus2008, on Flickr
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iann
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Re: In your opinion, which are the 3 worst pests in succulen

Post by iann » Wed Aug 17, 2011 5:12 pm

Planococcus citri are considered the most common mealy in British greenhouses. They don't have noticeable tails. There are several almost identical species or varieties but the difference hardly matters to us. They are a pretty big species, up to perhaps 5mm if given a steady diet of cactus juice :roll:

Pseudococcus longispinus has tails as long or longer than its body. Other Pseudococcus species have shorter tails. P. calceolariae has two noticeable darker stripes on either side of the back half of its body although they may be hidden by the mealy coating. P. longispinus has a single less noticeable stripe. Another species present in Britain is P. viburni which has no stripes and tails around half the length of its body. They are all a similar size, maybe slightly smaller than Planococcus citri but not a lot of difference. Immature nymphs look very similar to an adult female but are much smaller.

Root mealies are Rhizoecus species and are generally quite a bit smaller, 2mm-3mm at most.
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Re: In your opinion, which are the 3 worst pests in succulen

Post by Lindsey » Sun Sep 11, 2011 9:11 pm

1. Mites - I've stopped growing many mesemb genera (and even a regrettable brief flirtation with Chamaecereus long ago) because of mites.
2(a). Root mealy, tiny ones on Lithops.
2(b). Root mealy, bigger pinkish ones on Haworthia.
3. Sciara fly, only once on one H.truncata's roots, but once is enough :evil:

How about a thread about the most pest-free or pest-prone genera or families? I've never seen any pest on my Adromischus, of which I have many :grin:
Ever hopeful, trying to grow plants from arid sunny climates in the UK!
Lithops, Haworthia, Adromischus, other south African succulents including Ceropegia and some Crassula.
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Re: In your opinion, which are the 3 worst pests in succulen

Post by Jim_Mercer » Sun Sep 11, 2011 9:31 pm

Lindsey

Earlier in this thread you should find some pictures of an Adromischus after some Vine weevil larvae had eaten most of the insides of the roots/stems. They only dined on one plant but they chose the largest :sad:
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Re: In your opinion, which are the 3 worst pests in succulen

Post by PeterW » Mon Sep 12, 2011 4:29 am

Living in a frost free region of sunny Spain, my plants sit their whole lives ouside. If God waters them too much in winter the most precious shelter in a frame. I am mercifully free of pests, get a bit of winter rot sometimes, and sciarid fly hovers near any soil left uncovered indoors.
Once, after sowing some seed, I left the tray for a few minutes while I went for a plastic bag - I found a cockroach in the seed tray digging up and feasting on the seeds I had just sown. That mother got splatted. So maybe I can have COCKROACH added to the list !!
Bought my first cactus in 1957 - Now retired and growing Mexican desert cacti in the sun.
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