The Spring inspection trap that sets colonies back weeks...
Some parts of the country have recently seen a few warm, pleasant days that might tempt you to begin spring hive inspections. However, after a notably wet and unsettled start to the year across much of the UK, soils remain saturated, forage has been intermittent, and temperatures inconsistent despite the occasional mild afternoon.
Do not rush.
You may lift the crown board for a very quick assessment when conditions are genuinely suitable, but it is still too early for full frame-by-frame inspections in most areas, especially where we are in the South East of England.
A brief look should only be considered when the temperature is at least 14°C to 15°C in the shade and is expected to remain there for the duration of the inspection, not just for a short midday spike. Conditions should be dry, calm and bright, with bees flying freely and purposefully. Ideally, you should see pollen being brought in, indicating that brood rearing is underway and forage is available.
If those conditions are met, you may carefully check the outer frames to assess remaining stores. Full inspections involving removal of multiple brood frames should wait.
For much of the UK, early April is often used as a rough guide for first proper inspections, but this is entirely dependent on the season and local conditions. In colder regions or after prolonged wet weather, it may be later. Take your cues from the prevailing weather rather than the calendar, and most importantly from the behaviour and strength of the colony itself.
Consider whether the bees are flying strongly and consistently, whether pollen is coming in steadily, whether the colony is populous enough to cope with disturbance, and whether you would realistically be able to remedy a problem if one arose. Replacement queens are rarely available this early in the season, and colonies weakened by premature inspections may struggle to recover.
Opening a hive too early can chill brood, disrupt the cluster and set development back several weeks. In marginal colonies, it can be the difference between survival and failure. Patience in spring is one of the most important skills in beekeeping.
Manage colonies when they require it, not simply because the weather is pleasant.
If you do briefly open the hive, keep intervention minimal. Assess stores in relation to the brood nest. Colonies often consume winter stores in one direction and may end up tight against a side wall. If absolutely necessary, move frames of stores closer to the brood nest, but avoid moving or breaking up the brood area itself. Handle frames slowly and carefully, easing apart propolised joints to avoid jolting the cluster.
Avoid removing brood frames simply to inspect them. Exposing brood to cool air for even a short period can cause chilling, particularly in changeable spring conditions. Smoke should be used sparingly; colonies are often calm at this time of year, and excessive smoke can cool the cluster. Work efficiently and close the hive promptly.
After reassembly, heft the hive from the back to assess its weight. This remains one of the most reliable indicators of whether supplementary feeding is required.
Following such a wet start to the year, natural pollen availability remains inconsistent in many areas. Early sources such as crocus, hellebores, willow and ornamental shrubs may provide short bursts of forage, but prolonged rain and cool spells limit sustained collection. If pollen intake appears irregular or colonies feel light, fondant can be provided where stores are marginal. Where natural pollen is clearly lacking and brood rearing has begun, a pollen supplement such as Candipolline may be used to provide a consistent protein source until reliable forage becomes available.
Brood rearing requires both carbohydrate and protein. When pollen supply fluctuates due to unsettled weather, brood production can slow or stall. Supplementary feeding should support colony development but should not be used to overstimulate weak colonies beyond their capacity.
Water demand also increases at this time of year. Bees collect water to dilute crystallised winter stores and to feed developing brood. Providing a shallow water source with stones, gravel or moss for safe landing can be beneficial. Position it several metres from the hive entrance to reduce fouling from cleansing flights, and place it where it can warm slightly during the day. Keep it topped up during dry spells, and keep it clean from debris. Change daily.
Be aware that bees may still prefer natural sources such as muddy puddles, likely attracted by dissolved minerals, but providing a safe supply reduces risk and unnecessary wandering.
A few mild days can raise expectations, but a bright afternoon does not indicate that spring has properly arrived. Careful timing and restraint now will support stronger colonies later in the season.
Patience in early spring consistently pays dividends.