The Pest Information Management Systems (PIMS) is an online database of pests and diseases affecting food crops grown and traded across borders. PIMS is the first of its kind in across Africa and has been developed through the support of the East African Trade and Investment Hub (EATHUB), a USAID program.

Country Pest List

Scientific NameCommon NameCountryDescription
   
Cynodon dactylon (L.) Pers. (1805)Bermuda grassKenyaC. dactylon invades almost all kinds of crops and modified ecosystems, including urban areas and circullations paths (road & raliroad tracks) in ample regions, but it is limited by sensitivity to prolonged frost. C. dactylon tolerates a wide range of temperatures, especially very high temperatures in near-desert conditions. Satorre (1996) has established that base temperature for bud sprouting is of 7.7?C, although Fernandez and Bedmar (1991) state 10?C. According to Horowitz (1972), new rhizomes are generated when temperatures exceed 15-20?C. Growth is favoured by medium-to-heavy, moist, well-drained soils but C. dactylon will also grow on acid and quite highly alkaline soils and the undisturbed rhizome system can survive flood conditions and drought (Holm et al., 1977).
Cyperus compressus L. (1753)annual sedgeKenyaC. compressus is a pantropical species, growing well during summer and rainy months in a variety of moist places, irrigated fields, along water channels, ditches, stream banks, pond margins, damp grassy lawns, etc. It occurs on sandy, alluvial and clay soils, occasionally up to 1200 m in Sri Lanka (Collett, 1971). It propagates through seeds and very rarely through rhizome fragmentation.
Cyperus difformis L. (1756)small-flowered nutsedgeKenyaIt is mainly a weed of the tropics and subtropics but can be found from latitudes 45?N to 35?S (Holm et al., 1977). It propagates from seeds (achenes or nutlets) which are produced in large quantities.
Cyperus esculentus Linneus (1753)yellow nutsedgeKenyaTemperature is crucial to the successful establishment of C. esculentus (Li et al., 2000). The percentage of bud sprouting increases with increasing temperature within the range 12 to 38?C; no sprouting occurs at 10?C, and few tubers sprout at 42?C. The rate of sprouting also increases with temperature up to 35?C. A base temperature of 11.4?C was determined for bud-sprouting of C. esculentus tubers. Higher temperatures may lead to larger sprouts and greater survival rate. The seeds are normally dormant when shed but lose their dormancy with moist storage at 10?C. Germination is enhanced by alternating temperatures of 20 to 30?C. Seedlings emerge readily from a depth of 1.3 cm depth but more slowly from 2.5 cm (Holm et al., 1977). Seed is an important means of dispersal of C. esculentus (Holm et al., 1977).
Cyperus iria L. (1753)rice flatsedgeKenya
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