San Jose Scale (Diaspidiotus perniciosus, Diaspididae)
Damaging stage: Nymph and Adult
Damaging symptoms:
- Plant growth is checked, in severe infestation plant
- Yellow spot appear in the leaf, twigs and
- Fruit remains small, immature, discolored, cracked.
Identification
- Male scale is elongate, lighter amber color, a long projection from the base of abdomen and smaller than females.
- The male has wings and long antannnae.
- Females are round or oval, grayish, wingless and legless and its yellow body is soft and gobular.
- Nymphs are minute, yellow in color.
Management:
- Spraying Dormant oil, mineral oil ( servo oil)
- Root dipping
- Trenchdiggingandincorporate–disiton/temikand irrigate
- parasitoid, Encarsiapernicoisi
- Buprofezin
- Rogar
- Pyripoxyfen
- Carbofuran granules