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The African cassava mosaic disease (ACMD) is a major production constraint of cassava in Uganda. It is caused by a geminivirus (ACMV) that is transmitted by the whitefly vector (Bemisia tabaci) and disseminated by man through infected cutt…
A diagnostic survey and on-station trials done in Eastern Uganda in phase one of the cowpea project identified Aphis craccivora (koch), Megarulothrips sjostedti (Trybom), Maruca vitrata (Fabricius) and pod sucking bugs (Clavigralla tomento…
A 2X2X3 Factorial experiment was conducted at Kisozi Ranch, Gomba, during the 2nd rains of 1986 to determine the influence of two cultivators, two planting dates and three spacing’s on the incidence and severity of angular leaf spot (Phaeo…
Field surveys were done in 1997 and 1998 in Masaka district, Uganda, an area which is experiencing a decline in banana production, to assess level of damage caused by nematodes Radopholus similis and Helicotylenchus multicinctus at farm le…
In Uganda, it is suspected that late blight (Phytophora infestants) is largely responsible for the low tuber yields of potato. However, there is no quantitative information on the variability in occurrence of late blight disease in the cou…
In vitro plantlets and micro tubers can be induced form disinfested sprouts excised from potato tubers or nodal cuttings derived from green house potted plants. Studies were conducted to evaluate the performance of explants (sprouts tips) …
Maize is susceptible to a number of ear rot fungi, which cause reduction in yield, quality and feed value of the grains. The most common causative agents are Fusarium moniliforme J Shed. and Stenocarpella maydis (Berk). Associated with the…
Two field experiments were conducted to evaluate the performance of 142 progenies of Vo613Y x Pa405 bred in Ohio, USA for resistance to gray leaf spot (GLS) and study the spread of GLS form inoculated foci at two locations in central Ugand…
Field experiments were conducted during the growing seasons of 1999 and 2000 to study the population dynamics of pod bugs (Hemiptera) and their damage on cowpea in Uganda. The study aimed at determining the incidence, abundance and damage …
A study on quality of sesame seeds produced in Uganda was done. The objectives of the study were to determine the health status and quality of sesame seeds produced in Uganda;evaluate locally available materials in Uganda for use as substr…
Late blight caused by Phytophthora infestans (Mont.) de Bary is the most damaging disease of potato in the highlands of Uganda. The objective of this study was to identify plausible disease management options for development of an integrat…
The effects of concomitant infection by exserohilum turcicum and maize streak virus (MSV) were quantified in one susceptible maize inbred line. Infection by MSV masked symptom expression of Turcicum leaf blight. In general, plant leaf area…
Two studies were conducted to investigate the reaction of young and adult maize plants to Cercospora zeae-maydis in greenhouse and field conditions at two conditions at two locations in central Uganda. The greenhouse experiments were condu…
Studies on Peronosclerospora sorghi (weston and uppal) C. G.Shaw the causal agent of sorghum downy mildew (SDM), were conducted in response to the increased occurrence of the disease in Uganda. The geographic distribution of SDM on maize, …
Globally, one of the most recognized problems in soybean production is loss of seed viability. Similarly, In Uganda, this problem was noticed in the 1970s soon after the introduction of the crop in the country. Although several interventio…
Banana streak virus (BSV) causes a devastating disease of bananas in Uganda. screenhouse studies have demonstrated vector transmission in other locations, but there is no published records of field transmission. Understanding the transmiss…
Studies were conducted in the field, shade house and laboratory to explore different Ralstonia solanacearum management options for southwestern Uganda. The major objectives were to determine the effect of the crops commonly grown in rotati…
Virulence patterns, mating types, disease development, and yield losses associated with Exserohilum turcicum from Uganda were investigated. Maize differentials containing Ht1, Ht2, Ht3 or HtN genes were resistant to 215 Ugandan isolates te…
Cowpea is a very important crop in Uganda, particularly among the north and northeastern tribes because of its versatility and economic importance. An increase in production of cowpea demands that reliable information on the marketing of c…
This study was conducted to establish the prevalence and distribution of sweetpotato virus disease and other viruses infecting sweetpotato in Uganda, assess the level of resistance in the most commonly grown sweetpotato landraces in areas …
Farmers in Laikipia West district like many other farmers living in wildlife dispersal areas have continued to suffer huge losses resulting from wildlife menace without adequate compensation. Land use has been changing with time making the…
Experiments were carried out in Serere Agricultural and Animal Production Research Institute (SAARI) with the aim of establishing the economic injury levels and economic thresholds of aphids and pod borers on cowpea. The experiment to est…
Studies aimed at determining the occurence of seed-borne fungi and bacteria of rice in Uganda and effect pf postharvest processing practices on the quality of rice seed were conducted at Makerere University. A total of seventy seed samples…
Orange-fleshed sweetpotato (OFSP) varieties currently represent the least expensive, year-round source of dietary vitamin A available to poor families in Eastern Africa. An on-farm study was conducted in North-Eastern Uganda to assess fiel…
A study of the genetics of virulence was conducted for Maize Streak Virus (MSV), genus Mastrevirus, family Geminiviridae. The genomes of four clones were sequenced and their virulence determined using the susceptible maize hybrid pioneer 3…
