Pods of a garden pea,Pisum sativum,showing damage due to the presence of a larva of the pea moth,Cydia nigricana ( Laspeyresia nigricana ). The pea moth is an inconspicuous small moth that emerges from a pupa within the soil in early Summer ( June in N. Europe ). It lays eggs on the surface of pea plants; the larvae eat into the developing pods and feed on the peas within. The larva leaves the pod as it matures and dries,descends to the ground and overwinters as a pupa. The picture,taken in early July,shows pods from peas grown in the UK. The pea in the centre of the picture is damaged by a pea moth larva. The moth has one generation per year,so the damage it causes can be avoided by timing the sowing of the crop so that a newly hatched larva either encounters no pods ( from late sowing ) or pods that are already nearly mature ( from an early sowing ) | |
Licence : | Droits gérés |
Crédit: | Science Photo Library / Burgess, Dr. Jeremy |
Taille de l’image : | 3413 px × 5120 px |
Model Release : | Non requis |
Property Release : | Non requis |
Restrictions : | - |