The importance of pest birds and their identities are still poorly understood by Congolese farmers, yet they cause significant damage to crops. The main objective of this study was to assess the damage caused by predatory birds on the sowing, germination, and vigor at emergence of three staple crops: maize (Zea mays), peanuts (Arachis hypogaea), and rice (Oryza sativa), under the ecological conditions of Kinshasa/Mont-Amba. Our results showed significant differences in damage during sowing, with a notable average of 40% more damage to maize compared to rice and peanuts, and an average of 48% for rice, leading to a general average of 106% damage across the three crops at emergence. For developing seedlings, a remarkable average of 44% damage was observed in maize. A preliminary identification of predatory birds was also conducted. The bird species recorded during this study include: Quelea quelea (red-billed weaver), Ploceus cucullatus (masked weaver), Passer luteus (yellow sparrow), Quelea erythrops (red-headed weaver), Ploceus spp., Lonchura cucullata, and the crow. The experimental work revealed considerable damage caused by birds to maize, peanut, and rice crops in Kinshasa. Finally, the promotion of appropriate anti-bird control methods would be an effective means of rational management of pest bird populations for these crops, which would consequently help reduce their damage.

This study was conducted with the aim of taking stock of Ganoderma sp disease in oil palm plantations in the Lokondola division of Boteka. This disease causes significant losses and constitutes a major obstacle to the sustainability of replantings. Ganoderma, which is increasingly growing in the DRC, deserves particular attention, in order to develop methods that can limit its spread in the different production areas. Our analyzes showed different results. From a pathological point of view, all blocks presented at least one diseased foot. The disease was higher in bocs 111a and 112a with average incidences ranging between 10.2 and 8, and a little less in the rest of the blocks with averages of (3.2 to 4.7). The disease situation in different block plots of the division indicates that the disease is important in plots 23 and 18 of block 111a, with 14 and 11 sick subjects respectively. As for block 112a, the disease is higher in plots 14 and 15 (10 and 8 sick subjects) and lower in plots 24a and 25 (6 and 8 sick subjects). The assessment of the disease levels in the rest of the blocks of the plantation shows a situation comparable to the previous ones with values ​​between 3 to 7 sick subjects.