Table 1
Aphid predators observed during the K3 transects.
Prédateurs de pucerons observés durant les transects K3.
| Plant observed | Nb of transects | Aphid predator species observed | Average adult predator/transect (min-max) | Average predator preimaginal instar per transect (min-max) | Average YSA colonies observed (min-max) |
|---|---|---|---|---|---|
| Tithonia diversifolia K3 | 4 | Exochomus concavus* | 1.75 (0-5) | – | – |
| Parexochomus nigromaticulus | 0.25 (0-1) | – | |||
| Hippodamia variegata* | 0.75 (0-3) | – | |||
| Scymnus suturalis* | 0.50 (0-2) | – | |||
| Scymnus frontalis* | 1.00 (0-2) | – | |||
| Ortalia ochracea | 0.75 (0-2) | – | |||
| Harmonia axyridis* | 0.25 (0-1) | – | |||
| Chilocorus circumdatus | 0.25 (0-1) | – | |||
| Ischiodon aegyptius* | 2.25 (0-6) | – | |||
| Eristalis sp. | 0.50 (0-2) | – | |||
| Condostylus sp.* | 8.75 (2-17) | – | |||
| Paederus littoralis | 0.25 (0-1) | – | |||
| Mantis sp. | 1.25 (0-5) | – | |||
| Total | 18.50 (7-31) | – | |||
| Sugarcane field K3 | 4 | Brumoides suturalis | 1 (0-4) | – | 34.75 (4-101) |
| (Closest side to Tithonia) | Exochomus concavus* | 0.25 (0-1) | – | ||
| Hippodamia variegata* | 0.25 (0-1) | 0.75 (0-2) | |||
| Scymnus suturalis* | 0.25 (0-1) | – | |||
| Scymnus frontalis* | 0.25 (0-1) | – | |||
| Cryptolaemus montrouzieri | 0.25 (0-1) | – | |||
| Ischiodon aegyptius* | 1.75 (0-6) | – | |||
| Condostylus sp.* | 4.25 (1-9) | – | |||
| Total | 8.25 (5-15) | – | |||
| Sugarcane field K3 | 4 | Brumoides suturalis | 1.00 (0-4) | – | 167 (25-291) |
| (Farthest side to Tithonia) | Exochomus concavus* | 1.25 (0-4) | – | ||
| Hippodamia variegata* | 0.25 (0-1) | 0.75 (0-2) | |||
| Cheilomenes sulphurea | 0.25 (0-1) | – | |||
| Harmonia axyridis* | 0.25 (0-1) | – | |||
| Scymnus suturalis* | – | 0.25 (0-1) | |||
| Ischiodon aegyptius* | 0.25 (0-1) | 1.50 (0-5) | |||
| Chrysoperla rufilabris | 0.50 (0-2) | 0.50 (0-2) | |||
| Condostylus sp.* | 1.50 (1-3) | – | |||
| Total | 5.25 (4-6) | 3.00 (1-6) |
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