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The WeeklyFight Briefing.

Every issue — season forecasts, control tips, citizen science updates, and community sighting alerts. Here's what you've been missing.

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Season 2026 Issues

Past Issues

5 issues published. Adult season 2026, July through August.

#1

Adult Season Briefing

July 1, 2026

First Issue

The Season Opener

Subject: “They're Here. Here's Your First Briefing.”

  • Adult emergence confirmed across all 19 infested states
  • Mid-Atlantic past 810 GDD — your highest-impact window is now
  • How to hang a circle trap on your highest-pressure tree today
  • Notable sightings: Warren County VA frontier, Howard County MD aggregations
~1,400 wordsSubscribe to get future issues →
#2

The Tree Briefing

July 8, 2026

Adult Season

Know Your Enemy

Subject: “The tree in your yard is feeding them”

  • Tree of Heaven identification: the leaf, the smell, the seed clusters
  • Why ToH is the SLF's preferred host and what that means for your property
  • Hack-and-squirt vs. cut-and-paint: the right method for every trunk size
  • The trap tree strategy: use it against them before treating it
~1,600 wordsSubscribe to get future issues →
#3

The Trap Briefing

July 15, 2026

Adult Season

The Weapons

Subject: “Set one of these on your tree and catch hundreds per day”

  • Circle traps explained: how physics does the killing for you
  • RESCUE! bag trap vs. DIY screen trap — the honest comparison
  • Placement, maintenance, and what to look for at your first 48-hour check
  • Community leaderboard by county — who is fighting hardest
~1,500 wordsSubscribe to get future issues →
#4

The Squish Walk

July 22, 2026

Peak Season

Take the Fight to Your Block

Subject: “Walk your block for 20 minutes tonight. Here's why it matters.”

  • The squish walk: a deliberate route with rubber soles and a soapy-water jar
  • The aggressive pause technique — finds 4x more insects than a glance
  • How to document kill counts and what the data tells us
  • Arlington July Crew: 8,400 kills and counting
~1,400 wordsSubscribe to get future issues →
#5

The August Blitz

July 29, 2026

August Blitz

The August Blitz

Subject: “August is the deadliest month for SLF — here's how to fight it”

  • Why right now is the single highest-leverage moment of the season
  • The bucket-and-broom method: 100–200 kills in 20 minutes at peak ToH
  • Goal: 500 adults before egg-laying starts in 3–4 weeks
  • The math on stopping SLF before egg season
~1,700 wordsSubscribe to get future issues →

Every single issue

What You Get

Four recurring features in every briefing — so you always know where things stand and exactly what to do next.

Sighting Hotspot Map

Where the community is reporting this week — updated in real time from iNaturalist and our own map. Your neighborhood, your street.

Degree Day Update

Where we are in the season based on GDD accumulation — personalized to your zip code using the Penn State SLF phenology model.

This Week's Action

The single most impactful thing you can do right now, matched to the current life stage. One action. No overwhelm.

Community Leaderboard Update

Top-fighting neighborhoods, counties, and individual fighters this week. See where your block ranks — and who to catch.

fighters joining the network

Don't Miss
The Next One.

The next briefing goes out when adults peak. You'll get the GDD update for your zip code, the week's kill mission, and what the community is reporting near you. Free, always.

No spam. One briefing/week during season. Unsubscribe anytime.

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