The pest survey was used, preceded by one month of a pre-survey in North Kabare . In addition, the method of direct and detailed observation, systematic sampling and identification key was used. The aim of this study is to know the damage and the use of extracts of plants by coffee farmers farmers North of Kabare .The result of the study shows that the family of Arthropods (Thumbtack of the coffee and Thumbtack lace) causes enough damage to arabica coffee than other families like Thysanoptera (Thrips reel), Lepidoptera (Chenille rodent leaves and moth drupe) and Coleoptera (Hanneton of the coffee) and farmers have knowledge in combating insect pests coffee but they have no notion of the active principles of plants and the dose to be used .dropoff window Furthermore, the leaves of Tephrosia voegeli , Tithonia diversifolia, Tabacum nicotiana and Capsicum frutensis mixed with local know the name of "Kifebe" are effective.

The pest survey was used, preceded by one month of a pre-survey in North Kabare. In addition, the method of direct and detailed observation, systematic sampling and identification key was used. The aim of this study is to know the culture system and to assess the impact and severity of the disease raging coffee (Coffea arabica). The study shows that the cropping system as practiced is associated coffee and the majority of Kabare Northern coffee plantations suffer of Anthracnose, the rust and leaf spot thus fungal diseases. Coffee trees suffering with Die back, their branches, sometimes their branches, black and dry out gradually from the end and lose leaves, those of Anthracnose, green drupes growth appear small dark brown spots, black, rounded oval, markedly depressed that expand quickly. For rust, small yellow circular spots appear on the underside of leaves and leaf spot, small chlorotic points that extend and turn brown.

Artemisia annua and Mentha aquatica are plants, the first being an annual plant of variable size and the second in a perennial grass rependu D.R.CONGO. Both are used because of their toxic activity in Acanthoscelides obtectus and against Plasmodium falciparum. Aqueous extracts, terpene, and steroids from the leaves are equipped with a power that acts anophélinocide for 6 days. The DL100 and the LD50 of total extracts are respectively 0.37g/ml and 0,16g/ml for M. aquatica, 0.16g/ml and 0.08g/ml for A. annua.

Larva of Anopheles gambiae ss were collected in the sites at Lwiro and the surrounding areas, to study the sensibility and resistance of these vectors in front of four insecticides in the entomology laboratory of medicine and parasitology, CRSN-Lwiro. The test was carried on the adult femele vectors, twenty five individuals whose age ranged from two and five days. Indeed, this test concerned four insecticids mainly perméthrine (0.75%), deltaméthrine (0.05%) two components of pyrethrinoïdes, malathion (5%) and lambdacyhalothrine (0.05%) largely used in public health for the vectorial control. After more tests, all the Anopheles population have been noticed sensible to all the precited insecticids. Within an hour of test, Anopheles gambiae presented a certain resistance to deltamethrine with a rate of mortality of 46.6%. Twenty four hours after, the rate of resistance for anopheles raised to 95.5%. Statistically, at .05, between permethrine, malathion and lambdacyhalothrine, the difference is not significant in term of resistance. However, the deltamethrine compared to the three insecticids cited above, displays a significant difference and the vectors are resistant. The vectors of malaria may display a certain resistance to the insecticids owing to their origin and concentration.