Green apple aphid

Braconid wasps parasitize leafroller caterpillars, codling moth caterpillars, leafminer caterpillars, mealy apple aphid, green apple aphid. 

Fig. 5.31. Life cycle of green apple aphid Aphis pomi).

DAMAGE THRESHOLD. The green apple aphid serves mainly as a food for beneficials and is very rarely harmful. Severe damage can occur only if there is explosive reproduction in nurseries and young orchards. 

DIRECT. Chemical control of the green apple aphid is seldom necessary if there is optimum conservation of beneficials. If treatment is needed, however, a pyrethrum-rotenone formulation or soap formulation can be used. Neem has no effect on the green apple aphid. 

Aphid parasites Aphidius matricariae, Lysiphlebus testaceipes, other species Apple aphids, green peach aphids, melon aphids, others. Release 50-100 pupae of these parasitic wasps in a garden or small greenhouse early in spring. Experimental best effect if used with aphid predators. 

Although Siegler and Popence, (1925) are responsible for the early lively interest in the toxicity of the fatty acid derivatives containing a 12-carbon chain, the ccnnon use of coconut oil is only in part due to their suggestions (38). It should be noted that coconut oil is the most important and widely used oil in the soap industry. Ihe principal pests treated were aE ids rosy and green apple af ids bean aphids black chrysanthemum, etc. 

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