Cashew is a new source of income for many small-scale farmers in northern Côte d'Ivoire. Despite the excitement and hope generated, cashew orchards in northern Côte d'Ivoire are severely attacked by Helopeltis anacardii. At the CNRA (National agricultural research center) station in Lataha, located 22 km from Korhogo, three genotypes (LA X3264, LA X4297 and LA Z330) were being tested. This study aimed to evaluate the susceptibility of these three cashew genotypes to attacks by this mirid with a view to proposing control methods. The insects were captured on cashew trees of these three genotypes using a mowing net. The number of attacked leaves on each tree was recorded and the attack rates were calculated. The results showed that the population of H. anacardii increased during the rainy season to reach a peak in November. Then in the dry season the population of the insect decreased until it reached zero in the very hot season from March to June. H. anacardii was particularly fond of young leaves. The genotypes LA X4297 and LA Z330 with respectively 49.83 ± 18.07% and 45.90 ± 20.81% of attack rate were the most sensitive to the insect attacks. The genotype LA X3264 with 21.76 ± 11.71 % of attacked leaves had the lowest attack rate. It would be interesting to study the results obtained in the coming years, by identifying refuge areas and setting up an effective and sustainable control method against this pest.