4 inputs Sunburn and cracking shown separately Browser-only Shareable URL and restore

Orchard Sunburn and Cracking Risk Checker (Quick)

Q: "Can I use this for apples, grapes, citrus, or stone fruit?"

"Yes. The tool is meant for orchard blocks, and you can tune the sensitivity preset if a cultivar tends to be more fragile."

Q: "Why do I need sun, irrigation, and exposure in addition to temperature?"

"Sunburn is tied to direct exposure and cracking is tied to moisture swings, so temperature alone does not tell the whole story."

Q: "Can cracking happen even when irrigation looks fine?"

"Yes. Sudden rain, uneven uptake, and fruit stage still matter."

Q: "Does it support both °C and °F?"

"Yes. Switching units converts the same physical temperature."

Q: "Can I recreate the same conditions from a shared URL?"

"Yes. The URL carries both the inputs and the settings."

Use four simple inputs to see whether sunburn or cracking deserves attention first in an orchard block.

It is designed as a fast field check, not a full agronomic diagnosis.

Temp Sun Irrigation Exposure

What This Tool Shows

Temperature is entered as a number, while sun, irrigation, and exposure are entered as stage-based choices.

Sunburn and cracking are scored separately so the dominant concern is clear at a glance.

Sensitivity presets help absorb cultivar and regional differences without adding complex inputs.

Reference indicator only. This is not a diagnosis.

How to Use

Open the checker and enter the temperature.
Choose sun intensity, irrigation status, and fruit exposure from the stage options.
Adjust the sensitivity preset if your cultivar or region tends to run hotter or softer.
Read the scores, main drivers, and next checks, then copy the URL if you want to share the same conditions.

Examples

Load sample

Hot, bright, and dry block

Input 35°C, very high sun, very low irrigation, very exposed fruit, standard sensitivity

Output Very high attention (sunburn 88 / cracking 83)

Warm but managed block

Input 25°C, moderate sun, adequate irrigation, shaded fruit, standard sensitivity

Output Low attention (sunburn 25 / cracking 14)

Basis and Assumptions

Sunburn and cracking do not respond to heat in the same way, so the checker scores them separately.
Temperature is normalized to Celsius internally, while sun, irrigation, and exposure use globally readable stage inputs.
Sensitivity presets absorb broad regional and cultivar differences without forcing exact thresholds.
The result is a triage indicator, not a replacement for field scouting.

Formulas

Sunburn = clamp(100 × (0.42 × Temp + 0.28 × Sun + 0.10 × Irrigation + 0.20 × Exposure) × Sensitivity, 0, 100)

Cracking = clamp(100 × (0.30 × Temp + 0.12 × Sun + 0.48 × Irrigation + 0.10 × Exposure) × Sensitivity, 0, 100)

Overall attention = max(sunburn, cracking)

Temperature is normalized so 20°C maps to 0 and 40°C maps to 1.

Glossary

Sunburn

Damage to fruit skin caused by heat and direct exposure.

Cracking

Fruit splitting or cracking triggered by moisture swings and related stress.

Fruit exposure

A rough measure of how much fruit is left uncovered by leaves or canopy.

Sensitivity preset

A broad adjustment for cultivar and regional differences.

Notes

This is a quick triage check, not a diagnosis.
If damage is already visible, inspect the block first instead of waiting for the score.
Refresh the inputs after a heat wave, irrigation change, or rain event.

Frequently Asked Questions

Can I use this for apples, grapes, citrus, or stone fruit?

Yes. The tool is meant for orchard blocks, and you can tune the sensitivity preset if a cultivar tends to be more fragile.

Why do I need sun, irrigation, and exposure in addition to temperature?

Sunburn is tied to direct exposure and cracking is tied to moisture swings, so temperature alone does not tell the whole story.

Can cracking happen even when irrigation looks fine?

Yes. Sudden rain, uneven uptake, and fruit stage still matter.

Does it support both °C and °F?

Yes. Switching units converts the same physical temperature.

Can I recreate the same conditions from a shared URL?

Yes. The URL carries both the inputs and the settings.