📐 FIELD GUIDE ILLUSTRATION
Original illustration by PestControlBasics.com. Use anatomical labels above to confirm your identification.
🔄 Life Stages
🥚Egg
→🦠Larva
→🕷️Nymph
→🕷️Adult
🥚
Egg
Laid Directly on Leaf Webbing
Spherical, translucent eggs are laid on leaf underside webbing. Hatch time: 3 days at 86°F; 8 days at 60°F. Eggs survive some insecticide exposures.
🦠
Larva
6-Legged, Feeds Immediately
Newly hatched larvae have 6 legs (adult mites have 8). Begin feeding immediately. Larvae are the most susceptible stage to miticide treatment.
🕷️
Nymph
Protonymph → Deutonymph
Two nymphal stages, each with a brief quiescent (resting) period. Both stages have 8 legs and are more difficult to kill than larvae.
🕷️
Adult
Female Lays 100+ Eggs Over Lifetime
Female adults live 2-4 weeks and can lay 100+ eggs. In 5-7 days at 86°F, a single female becomes hundreds of mites. Mated females can produce both male and female offspring; unmated females produce only males (parthenogenesis).
🔬 Key Biology Facts
⚡Population explosion: At 86°F, one mite becomes 1,000 in 3 weeks. At 60°F: months. Hot, dry conditions = catastrophic population growth.
💊Resistance evolution: Resistance to any miticide class can develop in 5-7 generations (2-3 weeks in summer). Always rotate chemical classes.
🌿Plant stress amplifier: Stressed plants produce higher concentrations of the amino acids mites need — drought-stressed plants host 3-5x more mites than well-watered plants.
📅 Seasonal Timing
Year-round in greenhouses and on houseplants. Outdoor peak: July-September during hot, dry periods. Overwinter as mated females in bark crevices and debris.
⏰ Treatment Timing
Target larvae with first application (most susceptible stage). ROTATE miticide classes every application: bifenazate → abamectin → spiromesifen → etoxazole. Never repeat the same class. Biological control: Phytoseiulus persimilis predatory mites for greenhouses.
✅ Target the most vulnerable life stage for maximum effectiveness.