Citrus production is declining worldwide due to several biotic and abiotic factors. The diseases caused by Phytophthora spp. present major economic risks since they are soil-borne spread quickly if environmental conditions favorable, or irrigation poorly managed. species in all citrus-producing areas around the world causing significant losses crop yield affecting tree health. Bark infection, d...

Citrus (Citrus spp.) is one of the most important crops in Florida agriculture. Weed control is a major component in citrus production practices. If not controlled, weeds may compete with citrus trees for nutrients, water, and light and may also increase pest problems. Herbicides are an important component of integrated weed management program in citrus. Saflufenacil, a new herbicide registered...

Citrus is grown in more than 125 countries in a belt within 35° latitude north or south of the equator. The major limiting factor to citrus production is a requirement that the occurrence of freezing temperatures be of very short duration. Within the family Rutaceae, the genera Citrus (oranges, mandarins, pomelos, grapefruit, lemons, limes and citrons), Fortunella (kumquats) and Poncirus (trifo...

The Asian citrus psyllid, Diaphorina citri Kuwayama (Hemiptera: Psyllidae), is one of the most important pests of citrus (Citrus spp.) because of its status as a vector of Candidatus Liberibacter asiaticus (Las), the bacterium associated with citrus greening disease. The use of insecticides for vector control is the primary method of managing the spread of this pathogen. Imidacloprid is an inse...

Citrus huanglongbing (HLB), also known as citrus greening (3), is considered the most serious disease of citrus worldwide (8). The disease has long been present in Asia, Africa, the Indian subcontinent, the Mascarene Islands, and the Arabian Peninsula (2). It has only recently been found in South and North America (16,26). The pathogen is a gram-negative bacterium belonging to the alpha subdivi...

citrus blast caused by species of pseudomonas spp. is one of the most important citrus diseases in north of iran. this disease causes considerable losses to citrus orchards in conducive climatic conditions. due to restrictions on the use of antibiotics and chemical compounds, biological control and use of plant antimicrobial compounds can be an effective way to control citrus blast disease. in ...

Penicillium spp. are the major postharvest pathogens of citrus fruit in Mediterranean climatic regions. The induction of natural resistance constitutes one of the most promising alternatives to avoid the environmental contamination and health problems caused by chemical fungicides. To understand the bases of the induction of resistance in citrus fruit against Penicillium digitatum, we have used...

The Pacific islands have a diverse range of food and cash crops with indigenous and introduced nematode problems. The staple food crops have serious nematode pests, such as Meloidogyne spp. on sweet potato, Hirschmanniella miticausa causing corm rot of taro, and Pratylenchus coffeae and Radopholus sp. producing tuber dry rot of yams. Bananas are infested with P. coffeae or R. similis, citrus wi...