Final diagnosis


Aphids

<b> aphids </b> are insects that are not very mobile, 1.5 to 2.5 mm long, of variable color depending on the species (green, black, pink, etc.).  They come in wingless (wingless) or winged forms.
Salad stalk overgrown with aphids
Many <b> aphids </b>  cover this salad plant.
<b> Aphid </b> on a salad leaf 2
<b> Aphid </b> responsible for damage to salad.