Bulb rot care & when to replant

Lady's Island, SC(Zone 8b)

So, yesterday I decided to move one of my Trumpet lily bulbs before it started to grow. It has been in the same place for about 5 years. Of course, it needed some dividing, as well. Anyway, the mama bulb is huge, but due to our exceptionally cold/wet winter got a little rot on the very bottom. I cut that part off and now it looks nice and clean and white. I did notice some very tiny white bugs in the rotting portion. So, after I cut the rot off, I washed it good with water and set it aside in the shade to dry. I was wondering what, if anything, should I spray on it as far as a fungicide/insecticide before replanting? Also, how long do I let it dry out before I do replant it? I know it has to harden, but how long does that usually take? Should the bottom of the bulb still be white or will it darken as it hardens off? I don't want to plant it too soon and it rot again.

Thanks!

Ayrshire Scotland, United Kingdom

The little white grubs will be the larva of some form of insect that lays it's eggs either beside the plant when its above ground and the larva crawls down to the bulb to feed OR, the bug was a soil born insect that lays eggs into the soil and these will also live/feed from the bulb.
I've often lost some bulbs /tubers due to these tiny little white things like mini worms and there can be hundreds all feeding from the same bulb or tuber.

I know that some of these grubs larva, will not survive if brought out from the soil to the open air.

There is a powder dressing that I use for my Dahlia's as here in UK, some winters we have to lift these tubers out the ground and store them, I go to the drug store for Flowers of Sulphur, it's a yellow powder, I pour it into a paper bag, drop carefully the bulb or tuber into the bag and hold the closes top of bag in hand, gently shake the bag and roll it about till the whole tuber is lightly covered in the yellow powder, again gently shake the excess off and do the next tuber / bulb, leave the bulb upside down on news paper for a couple of days and then replant, the powder will have killer any little larva, fungus or rotted areas.
IF you cant buy that fungicide in your area, then garden stores will have equivalent.
I would not replant the bulb without some treatment.
Best wishes WeeNel.

Contra Costa County, CA(Zone 9b)

Flowers of Sulfur can be purchased in garden stores under the name 'Dusting Sulfur'

Ayrshire Scotland, United Kingdom

Thanks Diana, always appreciate your info, I know there are many things the same here but just named different so forgive IF it looks like I'm a nit-wit LOL,
Best Regards.
WeeNel.

Lady's Island, SC(Zone 8b)

Thanks for the information, Diana and WeeNel. I have seen dusting sulfur at our garden stores. I will have to pick some up for the future.

A couple of questions, though...

The white bugs didn't appear grub-like to me. They were crawlers with legs. They were very tiny and about a tad bit larger than the size of a period. After searching the internet, I am thinking the bugs were bulb mites. I have seen these same bugs before on other bulbs that had rotted while in the ground. I have never seen them on healthy bulbs, though.

Question #1: Do bulb mites cause bulb rot? Or do they move in after rot begins? Also what is the best way to prevent bulb mites?

Question #2: If dusting sulfur is applied before replanting the bulb, does it prevent bulb rot or does it only kill any rot present at the time of application. In other words...can I treat healthy bulbs with dusting sulfur prior to planting in order to prevent bulb rot?

Question #3: Do I apply dusting sulfur to a bulb while the bulb is still wet after being washed or do I apply it after the bulb is cleaned and dried?

Thanks!





Ayrshire Scotland, United Kingdom

Savvy you clean the bulbs, tubers or Rhizomes etc, with a week solution of soapy water (I use washing up liquid soap) place the bulbs into this diluted mixture with cool, (baby bath temp) and allow the bulbs to be just covered, after several hours, rinse the bulbs under running tap till you get rid of the soapy mixture, 9Even some soap left it too week to harm the bulbs)

Try get a few of those egg boxes we get when buying a doz eggs, or just lay out newspaper.
Pat the bulbs dry with kitchen paper towel, lay BOTTOM end up and leave to allow all the water and wet to run out of the bulbs, takes several days.
Repeat the bulbs with kitchen paper, place the sulphur powder into a paper bag, WEAR GLOVES, pop a couple of bulbs into the bag, clasp to top to close bag, use other hand to hols bottom of bag and do a upturn shake as you go, this will coat the bulbs, remove the bulbs and repeat till all the bulbs are dry and coated LIGHTLY with the sulphur powder.
Remove any wet damaged or loose parts of the bulbs, (they peel like Onions).

Leave bulbs in dark but cool place till you have the soil prepared for replanting.
Here in UK I have a lot of rainfall and parts of my garden can get too wet for some types of plants especially bulbs of a certain kind, others like damp.
To help the wetness of the soil where I want my bulbs to grow, I dig a deeper hole that required, make a mix of small gravel / grit and also Horticultural sand, (buy the right sand fro garden store in small bags, not costly at all, you can also buy the gravel in the same amount cheaply too. I mix this up in container or wheelbarrow and take it to planting position with the prepared bulbs. make sure you place about 4-6 inches of sand and gravel mix, lay your bulbs on top spaced as desired and back fill the hole with nice humus rich soil and make sure you press down gently to get rid of the air pockets that may be left in the backfill soil.
Add a handful of Blood / fish / bone meal to the bottom soil mix to help slow release the feed.

OR Plant as given but in pots for the first year to see the bulbs are doing well. then after flowering and foliage had died down, remove form pot and plant out as given before.

The grubs / insects you have found are only going for weak, damaged, and like wet soil, they wont come to the surface to feed or live, and they don't bite LOL.
they are like little white wriggly worm type things. I have found them in stored bulbs that I have forgotten about and they are washed off easy. the sulphur dressing will kill off any eggs and it will also kill off the grubs if left lurking.

Hope this helps you out a little.
Best Regards. WeeNel.
Hope this helps you out a bit.

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