Massachusetts Seasonal Pest Activity Calendar & Risk Estimator

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Massachusetts Seasonal Pest Activity Calendar & Risk Estimator

Estimate your seasonal pest activity risk in Massachusetts based on current conditions, property type, and environmental factors. Results reflect relative risk levels for common MA pests including ticks, mosquitoes, rodents, ants, termites, and stinging insects.

Current Month

January February March April May June July August September October November December

Average Daily High Temperature (°F)

Recent Moisture Conditions

Dry (below-average rainfall) Normal (average rainfall) Wet (above-average rainfall)

Property Type

Urban apartment / condo Suburban single-family home Rural / wooded property Near water (pond, wetland, stream)

Woodpile or Debris Near Structure?

No Yes

Standing Water on Property?

No Yes

Pets That Go Outdoors?

No Yes

Prior Pest Issues in Last 12 Months?

No Yes

Estimate Pest Risk

function masCalc() { // --- Inputs --- var month = parseInt(document.getElementById('mas-month').value); var temp = parseFloat(document.getElementById('mas-temp').value); var moisture = parseInt(document.getElementById('mas-moisture').value); var property = parseInt(document.getElementById('mas-property').value); var woodpile = parseInt(document.getElementById('mas-woodpile').value); var standWater = parseInt(document.getElementById('mas-standing-water').value); var pets = parseInt(document.getElementById('mas-pets').value); var prior = parseInt(document.getElementById('mas-prior').value);

var resultDiv = document.getElementById('mas-result');

// --- Validation --- if (isNaN(temp) || temp 110) { resultDiv.style.display = 'block'; resultDiv.innerHTML = 'Please enter a valid temperature between -20°F and 110°F.'; return; }

// --------------------------------------------------------------- // PEST RISK SCORING MODEL // Each pest scored 0–100 using weighted factors: // Base seasonal score (month × pest phenology curve) // + Temperature modifier // + Moisture modifier // + Property/habitat modifier // + Risk factor bonuses // Final composite risk = weighted average across pest categories // ---------------------------------------------------------------

// --- Monthly Base Activity Indices (0–10 scale, MA phenology data) --- // Indices: [Jan, Feb, Mar, Apr, May, Jun, Jul, Aug, Sep, Oct, Nov, Dec] var m = month - 1; // 0-indexed

var tickBase = [1, 1, 3, 6, 8, 7, 6, 6, 7, 5, 2, 1][m]; var mosquitoBase = [0, 0, 0, 2, 5, 8, 10, 9, 6, 2, 0, 0][m]; var rodentBase = [6, 6, 5, 3, 2, 2, 2, 3, 5, 7, 8, 7][m]; var antBase = [1, 1, 2, 5, 8, 9, 9, 8, 6, 3, 1, 1][m]; var termiteBase = [0, 0, 1, 4, 7, 8, 7, 6, 4, 2, 0, 0][m]; var stingingBase = [0, 0, 1, 3, 6, 8, 10, 9, 7, 3, 1, 0][m];

// --- Temperature Modifier (optimal ranges per pest, MA conditions) --- // Returns multiplier 0.0–1.5 function tempMod(t, optLow, optHigh, minActive, maxActive) { if (t maxActive) return 0.0; if (t >= optLow && t = 75) return { label: 'Very High', color: '#c0392b' }; if (score >= 55) return { label: 'High', color: '#e67e22' }; if (score >= 35) return { label: 'Moderate', color: '#f1c40f' }; if (score >= 15) return { label: 'Low', color: '#27ae60' }; return { label: 'Minimal', color: '#2980b9' }; }

var compRisk = riskLabel(composite); var tickRisk = riskLabel(tickPct); var mosquitoRisk= riskLabel(mosquitoPct); var rodentRisk = riskLabel(rodentPct); var antRisk = riskLabel(antPct); var termiteRisk = riskLabel(termitePct); var stingingRisk= riskLabel(stingingPct);

// --- Month Name --- var monthNames = ['January','February','March','April','May','June', 'July','August','September','October','November','December'];

// --- Recommendations --- var recs = []; if (tickPct >= 50) recs.push('Perform daily tick checks; use EPA-registered repellents (DEET/permethrin); keep grass mowed short.'); if (mosquitoPct >= 50) recs.push('Eliminate standing water weekly; use mosquito dunks in ornamental ponds; wear long sleeves at dawn/dusk.'); if (rodentPct >= 50) recs.push('Seal entry points ≥¼ inch; store food in airtight containers; remove woodpiles from structure perimeter.'); if (antPct >= 50) recs.push('Caulk foundation cracks; eliminate moisture sources; keep mulch 6+ inches from foundation.'); if (termitePct >= 40) recs.push('Schedule annual termite inspection; reduce wood-to-soil contact; fix moisture issues in crawl spaces.'); if (stingingPct >= 50) recs.push('Inspect eaves and overhangs monthly; seal gaps in siding; avoid sweet fragrances outdoors.'); if (recs.length === 0) recs.push('Maintain routine pest prevention practices; monitor for early signs of activity.');

// --- Build Progress Bar HTML --- function bar(label, pct, risk) { return '' + '' + '' + label + '' + '' + pct + '% — ' + risk.label + '' + '' + '' + '' + ''; }

var recsHtml = recs.map(function(r){ return ''; }).join('');

resultDiv.style.display = 'block'; resultDiv.innerHTML = '### Pest Activity Risk — ' + monthNames[m] + ' ' + '' + '' + composite + '/100' + 'Composite Risk: ' + compRisk.label + '' + '' + '#### Individual Pest Risk Breakdown ' + bar('🦟 Mosquitoes', mosquitoPct, mosquitoRisk) + bar('🕷 Ticks', tickPct, tickRisk) + bar('🐭 Rodents', rodentPct, rodentRisk) + bar('🐜 Ants', antPct, antRisk) + bar('🪲 Termites', termitePct, termiteRisk) + bar('🐝 Stinging Insects',stingingPct, stingingRisk) + '#### Recommended Actions ' + '' + recsHtml + ''; }

#### Formula & Scoring Methodology

Per-Pest Score (0–10):

PestScore = min(10, BaseActivity × TempModifier × MoistureModifier × PropertyModifier + RiskBonuses)

Composite Risk Score:

Composite = Σ (PestScore_i × 10 × Weight_i)

Weights: Ticks 25%, Mosquitoes 20%, Rodents 20%, Ants 15%, Termites 10%, Stinging Insects 10%

Risk Levels: Minimal (0–14) | Low (15–34) | Moderate (35–54) | High (55–74) | Very High (75–100)

#### Assumptions & References

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