| Treatments Liters of potassium silicate/ha | Number of eggs per coffee leaf* | ||
| At 3 days after the application | At 7 days after the application | At 21 days after the application | |
| 1. Control | 101.60 ± 64.88 a | 45.20 ± 1.64 a | 50.80 ± 1.30 a |
| 2. 2 liters | 021.80 ± 13.10 b | 09.80 ± 9.40 b | 02.00 ± 0.71 b |
| 3. 4 liters | 001.00 ± 02.24 b | 02.80 ± 4.38 b | 01.00 ± 0.00 bc |
| 4. 6 liters | 000.60 ± 01.34 b | 04.00 ± 5.48 b | 00.00 ± 0.00 c |
| 5. 8 liters | 002.80 ± 04.38 b | 05.20 ± 5.97 b | 01.00 ± 0.00 bc |
| 6. 10 liters | 000.00 ± 13.10 b | 00.00 ± 0.00 b | 00.00 ± 0.00 c |