Botanic Garden >> Gardening > >> Question and Answer >> Pests

Yellow Hairy Caterpillars on Sunflowers: BT Works Regardless of Species

ID Not Required

“Woolly worms” on sunflowers in Indiana—could be several species. Treatment is identical.

Organic Solution: BT

Bacillus thuringiensis (Dipel, MVP).
Dust on foliage; caterpillars ingest, stop eating, die.
Safe for kids, pets, pollinators.

Where to Buy

Local garden centers or Gardens Alive.

Pests: Sunflower Leaf Damage: Cosmetic Insect Feeding vs. Real Problems; Sunflower Seed Harvest: Paper Bag Method and Refrigerator Stratification; Too Late for Giant Sunflowers This Year? Save Seeds for Spring.; Getting Yellow Bells (Tecoma stans) to Bloom in Texas; Mystery Yellow Flower from a 'Bleeding Heart' Package: It's a Dahlia!; Identifying "Yellow Silk Shell" Flowers from Mexico; Where to Buy Yellow 'Gina' Dianthus; Sunflower Colors Beyond Yellow: A Complete Spectrum; Diagnosing Yellow Grass: Common Causes and Identification; Diagnosing Yellow Top Leaves on Transplanted Tomatoes

Garden Articles

Distinguishing White vs. Yellow Peach Seeds

Why Cuttings Rot After Moving from Water to Soil

Transplanting Blooming Easter Lilies: What You Need to Know

Diagnosing Yellow Leaves on Roses: Overwatering, Fertilizer, or Aphids?

Verticillium Wilt in Smoke Bush: Identification & Containment

Why Are My Vegetable Leaves Turning Yellow?

Temporary Yellowing After Heavy Rain: No Action Needed

Plants

Sago Palm Yellowing Fronds: Nutrients, Scale, or Mites

Iris and Daylily Tip Dieback: Chronic Root Zone Stress

Crepe Myrtle Yellow Leaves: Heat, Drought, or Nutrient Imbalance

30 Roses Yellowing in 2005: Fungicide Program Urgently Needed

Bougainvillea Yellowing in Arizona Heat: Overwatering and Sunburn

What Is Bt (Bacillus thuringiensis) and How Does It Control Caterpillars?

Fertilizer Burn on New Fescue Sod: Diagnosis and Recovery

Copyright © www.100flowers.win Botanic Garden All Rights Reserved