1. They seem to always have the Fames (hungry) aspect in them. However this may of just been coincidence. You might find that the node type is influenced heavily by the aspects in them aka. fames=hungry. death/darkness/undead = sinister. Life = pure. Now it might just be that nodes of a certain type will have a certain kind of aspect in them (particularly in world gen). However if node aspect does have an influence then it would be very interesting to see if this was expanded on in the future.
2. You can collect them in a jar.
3. They can't munch through obsidian and their feeding rate is slow.
4. You could use 2 fillers to surround the node in glass and then put the planks on top and jar the node. Next you could make an obsidian prison for it with an opening which will allow a far away wand recharge pedestal to feed off it. As long as you have a system to stop your wand getting sucked in then you could fill it very effectively from the node. Throwing in the primal aspects along with a tier 7 aspect like fabrico (and practically all the others) could give you a potent source of aspects.
Thaumcraft Hungry node
Thaumcraft nodes
- Bright Nodes - Regenerate Aspects Faster
- Normal Nodes - Regenerate at Normal Speed
- Pale Nodes - Regenerate Slower than normal
- Fading Nodes - Don't Regenerate Aspects
Additionally, when trying to combine nodes you won't always get the full amount over, it's random as to if as aspect transfers over or not but you may still loose a point! So all 86 of the perditio might not go into the 99 aqua node, but a fair portion of it should :) Also, you can put multiple nodes around the main node and it should work out! The bigger one will win in the end!
Nr. of aspects: 75
Silver bossed Obsidian Wand
Good source of perfodio
bunch of picks
Thaumcraft 4 Silverwood Saplings growth?
Thaumcraft saplings don't need anything special unless you go for trying to get them grown in a non-natural way. For example, bonemeal doesn't work on them, but a hoe of growth will get them to grow instantly. As far as growing naturally, they do seem to take a good bit longer than vanilla trees, and it might be that their height is causing an issue for you. Silverwood's have a pretty good range, from as little as 3 or 4 blocks to just about as tall as a spruce, so make sure there's nothing above the sapling.

Update status :2019-12-09 00:27:45
Postavit Alchemical Furnaces s Aracane Alembicmi
zautomatizovat prisun paliva (lavy)
vytvorit novu vetvu v AE2 sieti
thaumatorium + mnemonic matrix
regarge wand
Killing mobs drop these little aspect orbs, with a wand in your inventory the orbs will fill the wand up slowly as you "pick them up". Different mobs give different aspects, though I don't remember them off the top of my head, pretty sure they're all primals though.
The intended way is to simply walk around to nodes and recharge your wand as needed like you're doing currently, then once you've got a silverwood wand and have researched Node in a Jar go around and capture nodes and bring them back to your base. You can then make a recharge pedestal which automates the process of siphoning vis out of nodes by placing the wand in the pedestal then letting it fill up. Note that a the pedestal only pulls primals unless you get the compound focus upgrade for the pedestal, and b the process of jarring nodes damages them, so Bright drop to Normal, Normal drop to Pale and Pale drop to Fading. To my knowledge the main difference between Bright, Normal and Pale is recharge rate, Bright recharges vis faster than Normal, which recharges vis faster than Pale. Fading has a chance of being destroyed randomly, so you want to only move a node once ever.
Once you progress enough in TC, you can get access to the energised node which produces a constant flow of centi-vis (CV), using a charging relay you can recharge any wands inside an arcane workbench with the relay on top using CV. You can also use an Amulet of Vis Storage or a Vis Stone (the lesser quality one that only stores 25 vis, whereas the amulet stores 250), either will slowly recharge wands held and can be filled when standing near a vis relay being fed CV, so essentially slow wireless wand recharging.
As catspaw1313 pointed out, Forbidden Magic adds a livingwood core, which recharges using mana, as well as one for Blood Magic and life essence. Additionally, Thaumic Exploration adds the amber core which, whilst storing a stupidly small amount of vis (10 for the wand versus 25 for the staff), it passively regenerates vis at about half the speed that the stone or amulet would, for free. Tainted Magic also has the warpwood core which can store 250 vis for the wand and 500 for the staff, and it passively regenerates vis based on how much warp you have, the more warp, the faster it generates vis (I have nearly maxed the sanity checker gauge and it regenerates 1 vis every maybe 2 seconds or so? pretty good).
All the ways that I know of to recharge wands.
Problem with Endearing Bees
The bees need to be super happy ti produce their specials now. Even if their temp/humidity tolderance is high, they need the exact preferance for their species.