Scale Insect Development and Experimental Answer in the South-East Walnut Production Area of France
The south-east walnut production area in France has known an outbreak of brown soft scale, Parthenolecanium corni (PC), considered so far as a second order pest.Damage, including harvest loss and deadwood production, appeared in the orchards.Describing the life cycle of the insect on walnut and under local conditions was a preliminary step of investigation for with a view to efficient, supervised control.P.corni has been described on other plant species and has shown different voltinism and migration habits.After two years of weekly insect sampling and stage determination, a life cycle was proposed.Under local conditions, P.corni produces one generation per year.Winter migration intensity can vary considerably from one plot to another.With this better knowledge of the life cycle of PC, a field study hasbeen conducted to control the insect at an early development stage, in March, by using ATOMAK02.Both ATOMAK02 and the white oil insecticide used as a reference product were efficient on PC.Two different doses of ATOMAK02 were tested.With the dosage giving optimal results, an efficiency rate of 80% was obtained.
J.regia Parthenolecanium corni chemical control scale life cycle
F.Noton A.Verhaeghe
sENuRA,Chatte,France Direction Scientifique et Technique,Ctifl,Chatte,France
国际会议
The 7th International Walnut Symposium(第七届世界核桃大会)
山西汾阳
英文
373-377
2013-07-20（万方平台首次上网日期，不代表论文的发表时间）