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APPLICATION RECOMMENDATIONS
In citrus orchards the first overwintered mealybug adults and eggs were seen on trees at the beginning of May. Biological control releases were also started with the first mealybugs occur. Citrus orchards releasing recommendations were given below.
| Application Time | Pest Density | Dosage | Notes |
| May - June at first mealybug occurence | Orchards with low mealybug density in previous year |
10 C. montrozieri (BiyoAvcı) / tree 10 L. dactylopii (BiyoArı) / tree |
After release mealybug development should be follow in the orchard. If necessary second release may need. |
| Orchards with high mealybug density in previous yeras (two application may need) |
20 C. montrozieri (BiyoAvcı) / tree 20 L. dactylopii (BiyoArı) / ağaç |
THE IMPORTANT POINTS of BIOLOGICAL CONTROL APPLICATIONS
- The Cryptolaemous montrozieri (BiyoAvci) and Leptomastix dactylopii (BiyoAri) should be used together in the citrus orchards which have mealybug problem.
- Because the mode of action of these beneficials complete each others activity while covering mealybug life cycle.
- Cryptolaemous montrozieri (BiyoAvci) prey on eggs of mealybug and early larval stages (1st and 2nd) and Leptomastix dactylopii (BiyoAri) parasitized 3rd larval stage and young adults.
- Ant activities (Figure a) cause negative effect on beneficials especially on Leptomastix dactylopii (BiyoAri)
- Ants feeding on mealybug's sweet body secretion, while they are after food their movements and odours inhibit the parasitoid activity.
- The orchards under high ant activity, to prevent ant disturbance dust malathion (25%) spread the trunk of three (Figure b)
- This could be apply on the trunk of tree just above the soil level by a sponge like bracelet (Figure b).
- This dusty area on the trunk of tree prevent the ants climing uop to the mealybug colony.
- In the orchards where biological control going to be applied should not be used insecticides (broad spectrum insecticides and/or insect growth regulators).
- If insecticides used there should be 30 days (4 weeks) passed from insecticide application and 45 days (6 weeks) passed from insect growth regulator applications.
- After biological control application the mentioned insecticides should not be used.
- These insecticides have direct negative effect on biological control.
- Please call us for any question about biological control application.
