Fruit tree leaf roller: This year's infestation indicates need for next year's spring treatment against fast-spreading citrus pest
oleh: L Atkins
| Format: | Article |
|---|---|
| Diterbitkan: | University of California Agriculture and Natural Resources 1952-06-01 |
Deskripsi
Damage by the fruit tree leaf roller is held to a minimum if an effective insecticide—DDT, DDD, parathion, or EPN—is applied seven to 14 days after egg hatching begins.