Date: 22 Aug 2002 Author: Jianhua Mo
- The adults are brown and have a distinguishing yellow X-shaped cross. Juveniles do not have a cross — they have two small spots on their back.
- Approximately 2.5 cm long.
- Three to four generations per year.
- Five nymphal stages.
- Eggs are large, elongated and brown, with a rounded lid.
- Crusader bugs feed on young plant growth, resulting in the wilting of shoots. The shoots go brown and often die back to the old wood.
- All citrus varieties can be attacked.
- Monitor once or twice during October–April by checking five randomly selected shoots on each tree.
- Assassin bugs
- Praying mantises
- Parasitic wasps
- If 25 or more of the shoots are infested, spot spray with a selective insecticide.