FPRC Forest Protection Research Centre (FPRC)
Tran Thi Le Tra, Pham Quang Thu, Nguyen Minh Chi.
Vietnam Journal of Forest Science, 1
The damage causing by shoot borer (Hypsipyla robusta) has been a major obstacle to the afforestation of Chukrasia tabularis. Thus the selection of tolerant varieties to the shoot borer has been attracted great interest. This study aimed to compare serveral characteristics, including morphology, phenology and resilience after shoot borer damage of the five tolerant families of C. tabularis to shoot borer (LH26, LH32, LH87, LH108 and LH109) and 5 susceptible families (LH48, LH49, LH56, LH59 and LH71). Results showed that the tolerant families had shorter shoot length, thicker and harder bark, and more trichome than the susceptible families. It generally takes about 2 months for trees’ from the last deciduous phenomenon to sprout new buds. LH108 and LH109 had a different time of blooming compared to other families. The tolerant families were more resilient with a quick recovery time and often had only one replacement main shoot after being damaged by shoot borer. The study results of this study will be the basis for screening the tolerant varieties of C. tabularis to this insect pest.