Pests & Disease

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Small-cell and foundationless as varroa control — does the evidence actually support it? Skeptic asking honestly

Eight years in Skåne, and every summer the same claim resurfaces at our club: regress your bees to 4.9 mm small-cell (or go foundationless for 'natural cell') and varroa …

SkaneBees · Skåne, SE · Pests & Disease · Aug 6, 2026 · ▲ 14 · 💬 5

Apiguard vs Formic Pro when it's 33-35C every day — are the temperature limits real or cautious lawyering?

Third year in North Carolina, four hives, mite counts creeping up (6-9 per 300) and I need to pick a treatment. Our forecast is 33-35C for the foreseeable. Formic Pro say…

SourwoodGrace · North Carolina, US · Pests & Disease · Aug 4, 2026 · ▲ 13 · 💬 4

Alcohol wash came back around 5% — what actually works in a dearth, and is formic safe in this heat?

Washed all six of my hives yesterday here in Oregon and my two biggest ones came back at 14 and 16 per 300 — call it 5%. Way over threshold, I know I need to treat now, n…

MayaBees · Oregon, US · Pests & Disease · Aug 3, 2026 · ▲ 12 · 💬 4

The bees that get you through winter are being raised right now — a reminder about August mite loads

22 years in and I still see the same heartbreak every spring, so forgive the soapbox. The colony that dies in January didn't die in January. It died in August. Your winte…

GeorgiaWes · Georgia, US · Pests & Disease · Aug 3, 2026 · ▲ 15 · 💬 5

Chalkbrood back again after a fortnight of Perthshire drizzle — beyond ventilation, what actually moves the needle?

Seven years in Perthshire, six hives. One colony throws chalkbrood mummies every time we get a cool damp spell — and we've just had two solid weeks of it. White and grey …

PerthshireBees · Perthshire, UK · Pests & Disease · Aug 2, 2026 · ▲ 9 · 💬 3

Apivar timing math — working back from winter bees, what's the real drop-dead start date?

Six years in Flanders, and this season I'm switching to Apivar after two formic summers. I want to sanity-check my timing math because amitraz strips are a 6-week commitm…

BuckfastLinda · Flanders, BE · Pests & Disease · Aug 2, 2026 · ▲ 18 · 💬 4 · ✅ Solved

Bald brood in patches — how do I tell wax moth damage from hygienic uncapping?

Second year in Galway, two hives. Found several patches of bald brood in my stronger hive yesterday — capped pupae with the cappings removed or perforated, white pupae vi…

GalwayBees · Galway, IE · Pests & Disease · Jul 30, 2026 · ▲ 8 · 💬 3 · ✅ Solved

Mite wash jumped from 2 to 8 per 300 right after pulling supers — did harvest cause this?

Second year, three hives in Ontario. Did alcohol washes in mid-June: 1, 2, and 2 per 300 across the three hives. Felt great. Pulled supers on the weekend and re-washed ye…

BethsBees · Ontario, CA · Pests & Disease · Jul 28, 2026 · ▲ 16 · 💬 4 · ✅ Solved

Oxalic vapour mid-summer with brood in the hive — why did one round do nothing?

Quebec, five years, six colonies. Alcohol wash on my worst hive came back at 11 per 300 last week — way over threshold, can't wait for fall. I vaporised oxalic once, wait…

QuebecBees · Quebec, CA · Pests & Disease · Jul 24, 2026 · ▲ 18 · 💬 4

Neighbour's colony died out and I'm scared it's AFB — what do I actually check before calling someone?

First year, two hives, Yorkshire. The retired chap two fields over lost his only colony a few weeks back and just told me over the fence that it 'dwindled and stank a bit…

YorkshireNewbee · Yorkshire, UK · Pests & Disease · Jul 22, 2026 · ▲ 25 · 💬 5 · ✅ Solved

Sugar roll undercounts mites — is killing 300 bees for an alcohol wash actually worth it?

Third year, 6 hives in the NC piedmont. My club teaches sugar roll because 'you don't kill bees', but I've been reading that sugar shakes recover maybe 80–90% of the mite…

SourwoodGrace · North Carolina, US · Pests & Disease · Jul 20, 2026 · ▲ 21 · 💬 5

Formic Pro: single-strip 10-day dosing vs the full 2-strip hit — heat ceiling and queen risk

Perthshire, 9 hives, mite loads creeping to where I want formic on before the heather. Deciding between the two label options for Formic Pro: both strips at once for 14 d…

PerthshireBees · Perthshire, UK · Pests & Disease · Jul 18, 2026 · ▲ 20 · 💬 4

Something is scratching at my hive entrances at night — found claw marks and torn-up grass

Jalisco highlands, 12 hives on low stands. Three mornings in a row now I've found the same scene at two hives: little scratch marks on the landing boards and around the e…

AbejaMiguel · Jalisco, MX · Pests & Disease · Jul 18, 2026 · ▲ 12 · 💬 4 · ✅ Solved

Ants marching into my hive in a line — do the oil-cup stands actually work? Is cinnamon real?

İzmir, second year, 3 hives on a wooden stand in the garden. This morning I found a proper ant highway going up one stand leg and straight into the back seam of my weakes…

elif_arici · İzmir, TR · Pests & Disease · Jul 16, 2026 · ▲ 10 · 💬 3

Seeing K-wing and a couple of deformed wings — treat immediately, don't wait for a wash number

PSA post, because I nearly talked myself out of acting this week. Inspecting my Willamette Valley hives on Sunday I spotted two bees with the classic K-wing posture on th…

MayaBees · Oregon, US · Pests & Disease · Jul 14, 2026 · ▲ 24 · 💬 4

Pile of dead bees with tongues out the morning after the next farm sprayed canola — what do I do RIGHT NOW?

Minnesota, first year, two hives, and I walked out this morning to something awful: hundreds, maybe more, of dead and twitching bees in front of both hives. Many have the…

mn_newbee · Minnesota, US · Pests & Disease · Jul 12, 2026 · ▲ 24 · 💬 5

Victoria AU winter: confirmed broodless this week — the one clean oxalic round of the year

Mid-winter here in Victoria and I did my July checks on a mild still day: quick look under the crown boards, hefted for stores, and pulled the centre frame on two of my s…

BallaratBees · Victoria, AU · Pests & Disease · Jul 9, 2026 · ▲ 13 · 💬 3

Chalky white lumps AND weird curled larvae in the same hive — chalkbrood or sacbrood or both?

Vermont, second year, and my weaker colony is throwing two different kinds of gross at me and I can't tell what I'm looking at. Thing one: hard white and some grey-black …

VTBeeHannah · Vermont, US · Pests & Disease · Jul 8, 2026 · ▲ 12 · 💬 4 · ✅ Solved

Mid-July mite check PSA: your spring threshold no longer applies

Yearly reminder for everyone enjoying the flow: do a wash NOW, not in August. In spring a 3% infestation (9 mites per 300 bees) is the common treatment trigger. From mid-…

ImkerinLena · Bavaria, DE · Pests & Disease · Jul 6, 2026 · ▲ 22 · 💬 4

Patchy dead brood after the cold snap — chilled brood, or am I looking at EFB?

Yorkshire first-year keeper trying not to spiral. We had that cold wet snap last week (down to 6°C at night) and yesterday's inspection showed a patch of dead brood on th…

YorkshireNewbee · Yorkshire, UK · Pests & Disease · Jul 1, 2026 · ▲ 21 · 💬 4 · ✅ Solved
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