The highest average number of the total number of the sugar beet moth, Scrobipalpa ocellatella larvae and the highest average number of the healthy larvae were recorded in October plantation and presented by 20.1±1.75 and 14.4±1.68 individuals On the other hand, the average number of the parasitized larvae caused by Agathis sp. was ranged between 0.3±0.33 individuals in September plantation and 0.8±0.24 individuals in November plantation during the first season, 2018/19. while in the second season 2019/20, the highest average number of the total S. ocellatella larvae and the highest average number of the healthy larvae were recorded in August plantation and presented by 14.4±2.01 and 9.4±2.29 individuals On the other hand, the average number of the parasitized larvae caused by Agathis sp. was ranged between 1.0±0.58 individuals in September plantation and 1.6±0.40 indiv.in August plantation. The percentage of parasitism caused by the larval parasitoid, Agathis sp. was the highest in August plantation during the first season and in October plantation during the second season and presented by 7.5 and 17.7%, respectively. The highest average number of the total S. ocellatella pupae and the highest average number of emerged moth were recorded in October plantation and represented by 17.3±1.72 and 14.4±1.68 individuals Furthermore, the average number of parasitized pupae caused by Diadegma sp. was ranged between 0.6±0.24 individuals in August plantation and 2.5±0.42 individuals in October plantation in the first season. While in the second season, the highest average number of the total S. ocellatella pupae and the highest average number of emerged moth were recorded in August plantation and represented by 11.2±1.93 and 9.4±2.29 individuals

The highest average number of egg-laying of P. mixta and P. hyoscami were recorded in sugar beet, followed by fodder beet, chard plants and table beet plants. Also, the highest incubation period were recorded in table beet plants. The highest percentage of hatchability in P. mixta was in fodder beet plants. As for P. hyoscami, it was in sugar beet plants. The shortest larval duration, pupal duration and the total immature stages recorded when reared P. mixta on sugar beet plants and presented by 14.1±0.35, 21.9±0.62 and 42.2±0.92 days, respectively. While, when reared P. mixta in table beet recorded the highest larval, pupal and total immature stages and presented by 20.9±0.48, 27.5±0.47 and 55.6±0.45 days, respectively. Also, for P. hyoscami, the shortest larval duration and pupal duration recorded when reared P. hyoscami on sugar beet plants and presented by 11.9±1.61, 17.6±2.46 days but the shortest total immature stages duration recorded when reared P. hyoscami on fodder beet and presented by 36.4±2.95 days, respectively. While, when reared P. hyoscami in table beet recorded the highest larval, pupal and total immature stages and presented by 17.3±2.35, 22.1±3.00 and 47.7±4.16 days, respectively. The longest longevity was recorded with P. mixta females for each host plant and P. hyoscami recorded the shortest adult longevity for each host plant. Sugar beet and fodder beet recorded the longest adult longevity.