Corn is a cereal of global importance for its different industrial uses and nutritional value; however, the effects caused by the presence of nematodes in the corn can be very harmful. For this reason, the present work was proposed with the main objective of recognizing and identifying the parasitic plants nematodes associated with this crop in the regions of Puno and Cusco; For this purpose, 131 soil samples were collected during the 2015-2016 campaign in the Puno Region (districts of Chupa, Sandia, San Juan del Oro, Cuyocuyo, Ayapata, Ollachea, and San Gabán); and 30 samples in the Cusco Region, (districts of Pisac and Urubamba). The soil samples were processed by the centrifugal fluctuation method in sucrose solution. After analyzing the samples, the results determine the presence of the following genera of nematodes: Helicotylenchus spp., Mesocriconema spp., ...

Phytoparasites such as nematodes attack without showing signs of symptoms, while they can prevent the passage of nutrients and the normal growth of the plant. In the region of Puno, the genus Globodera spp. is the most important pest, however there are no reports for Meloidogyne spp. Thus, the objective of this research is to identify the different genera of phytoparasite nematodes in the cultivation of quinoa in the main production areas of the Puno region. Soil samples were collected in the provinces of Puno, Huancané, San Román, Chucuito, Collao, Yunguyo and Azángaro. Nematode extraction from soil samples was carried out by the centrifugal fluctuation method with sucrose and mounted on permanent sheets for morphological studies.The genera of phytoparasite nematodes identified were Meloidogyne spp., Nacobbus spp., Pratylenchus spp.,&...

Corn is a cereal of global importance for its different industrial uses and nutritional value; however, the effects caused by the presence of nematodes in the corn can be very harmful. For this reason, the present work was proposed with the main objective of recognizing and identifying the parasitic plants nematodes associated with this crop in the regions of Puno and Cusco; For this purpose, 131 soil samples were collected during the 2015-2016 campaign in the Puno Region (districts of Chupa, Sandia, San Juan del Oro, Cuyocuyo, Ayapata, Ollachea, and San Gabán); and 30 samples in the Cusco Region, (districts of Pisac and Urubamba). The soil samples were processed by the centrifugal fluctuation method in sucrose solution. After analyzing the samples, the results determine the presence of the following genera of nematodes: Helicotylenchus spp., Mesocriconema spp., ...

Phytoparasites such as nematodes attack without showing signs of symptoms, while they can prevent the passage of nutrients and the normal growth of the plant. In the region of Puno, the genus Globodera spp. is the most important pest, however there are no reports for Meloidogyne spp. Thus, the objective of this research is to identify the different genera of phytoparasite nematodes in the cultivation of quinoa in the main production areas of the Puno region. Soil samples were collected in the provinces of Puno, Huancané, San Román, Chucuito, Collao, Yunguyo and Azángaro. Nematode extraction from soil samples was carried out by the centrifugal fluctuation method with sucrose and mounted on permanent sheets for morphological studies.The genera of phytoparasite nematodes identified were Meloidogyne spp., Nacobbus spp., Pratylenchus spp.,&...

Phytoparasites such as nematodes attack without showing signs of symptoms, while they can prevent the passage of nutrients and the normal growth of the plant. In the region of Puno, the genus Globodera spp. is the most important pest, however there are no reports for Meloidogyne spp. Thus, the objective of this research is to identify the different genera of phytoparasite nematodes in the cultivation of quinoa in the main production areas of the Puno region. Soil samples were collected in the provinces of Puno, Huancané, San Román, Chucuito, Collao, Yunguyo and Azángaro. Nematode extraction from soil samples was carried out by the centrifugal fluctuation method with sucrose and mounted on permanent sheets for morphological studies.The genera of phytoparasite nematodes identified were Meloidogyne spp., Nacobbus spp., Pratylenchus spp.,&...

Corn is a cereal of global importance for its different industrial uses and nutritional value; however, the effects caused by the presence of nematodes in the corn can be very harmful. For this reason, the present work was proposed with the main objective of recognizing and identifying the parasitic plants nematodes associated with this crop in the regions of Puno and Cusco; For this purpose, 131 soil samples were collected during the 2015-2016 campaign in the Puno Region (districts of Chupa, Sandia, San Juan del Oro, Cuyocuyo, Ayapata, Ollachea, and San Gabán); and 30 samples in the Cusco Region, (districts of Pisac and Urubamba). The soil samples were processed by the centrifugal fluctuation method in sucrose solution. After analyzing the samples, the results determine the presence of the following genera of nematodes: Helicotylenchus spp., Mesocriconema spp., ...

Phytoparasites such as nematodes attack without showing signs of symptoms, while they can prevent the passage of nutrients and the normal growth of the plant. In the region of Puno, the genus Globodera spp. is the most important pest, however there are no reports for Meloidogyne spp. Thus, the objective of this research is to identify the different genera of phytoparasite nematodes in the cultivation of quinoa in the main production areas of the Puno region. Soil samples were collected in the provinces of Puno, Huancané, San Román, Chucuito, Collao, Yunguyo and Azángaro. Nematode extraction from soil samples was carried out by the centrifugal fluctuation method with sucrose and mounted on permanent sheets for morphological studies.The genera of phytoparasite nematodes identified were Meloidogyne spp., Nacobbus spp., Pratylenchus spp.,&...

Corn is a cereal of global importance for its different industrial uses and nutritional value; however, the effects caused by the presence of nematodes in the corn can be very harmful. For this reason, the present work was proposed with the main objective of recognizing and identifying the parasitic plants nematodes associated with this crop in the regions of Puno and Cusco; For this purpose, 131 soil samples were collected during the 2015-2016 campaign in the Puno Region (districts of Chupa, Sandia, San Juan del Oro, Cuyocuyo, Ayapata, Ollachea, and San Gabán); and 30 samples in the Cusco Region, (districts of Pisac and Urubamba). The soil samples were processed by the centrifugal fluctuation method in sucrose solution. After analyzing the samples, the results determine the presence of the following genera of nematodes: Helicotylenchus spp., Mesocriconema spp., ...

Corn (Zea mays L.) is a cereal of global importance for its different industrial uses and nutritive value. Like other crops, it is affected by pests, including nematodes, whose presence in the maize crop causes a decrease in yields, so the present work is presented. In order to determine the population density of nematodes associated with maize cultivation in the regions of Puno and Cusco; For which 121 soil samples were collected during the 2015-2016 campaign in the Puno Region, in the districts of Chupa, Sandia, San Juan del Oro, Cuyocuyo, Ayapata, Ollachea and San Gabán; And 30 samples from the Cusco Region, in the districts of Pisac and Urubamba. Were identified the genera genera Helicotylenchus spp. and verified. (32-100%), Mesocriconema spp. (33.3-63.8%), Globodera spp. (96-100%), Xiphinema spp. (11-36.6%), Rotylenchus spp. (2...

Corn (Zea mays L.) is a cereal of global importance for its different industrial uses and nutritive value. Like other crops, it is affected by pests, including nematodes, whose presence in the maize crop causes a decrease in yields, so the present work is presented. In order to determine the population density of nematodes associated with maize cultivation in the regions of Puno and Cusco; For which 121 soil samples were collected during the 2015-2016 campaign in the Puno Region, in the districts of Chupa, Sandia, San Juan del Oro, Cuyocuyo, Ayapata, Ollachea and San Gabán; And 30 samples from the Cusco Region, in the districts of Pisac and Urubamba. Were identified the genera genera Helicotylenchus spp. and verified. (32-100%), Mesocriconema spp. (33.3-63.8%), Globodera spp. (96-100%), Xiphinema spp. (11-36.6%), Rotylenchus spp. (2...

Corn (Zea mays L.) is a cereal of global importance for its different industrial uses and nutritive value. Like other crops, it is affected by pests, including nematodes, whose presence in the maize crop causes a decrease in yields, so the present work is presented. In order to determine the population density of nematodes associated with maize cultivation in the regions of Puno and Cusco; For which 121 soil samples were collected during the 2015-2016 campaign in the Puno Region, in the districts of Chupa, Sandia, San Juan del Oro, Cuyocuyo, Ayapata, Ollachea and San Gabán; And 30 samples from the Cusco Region, in the districts of Pisac and Urubamba. Were identified the genera genera Helicotylenchus spp. and verified. (32-100%), Mesocriconema spp. (33.3-63.8%), Globodera spp. (96-100%), Xiphinema spp. (11-36.6%), Rotylenchus spp. (2...

Corn (Zea mays L.) is a cereal of global importance for its different industrial uses and nutritive value. Like other crops, it is affected by pests, including nematodes, whose presence in the maize crop causes a decrease in yields, so the present work is presented. In order to determine the population density of nematodes associated with maize cultivation in the regions of Puno and Cusco; For which 121 soil samples were collected during the 2015-2016 campaign in the Puno Region, in the districts of Chupa, Sandia, San Juan del Oro, Cuyocuyo, Ayapata, Ollachea and San Gabán; And 30 samples from the Cusco Region, in the districts of Pisac and Urubamba. Were identified the genera genera Helicotylenchus spp. and verified. (32-100%), Mesocriconema spp. (33.3-63.8%), Globodera spp. (96-100%), Xiphinema spp. (11-36.6%), Rotylenchus spp. (2...

The attributes of nematodes are presented as valuable tools for determining the quality of soil, especially that of mining companies. The aim of this study was to evaluate the behavior of nematodes against a stress gradient in a rainy season and a dry season in soils influenced by mining. Thus, field sampling was carried out over 100 m2 in triplicate for four types of soils classified according to their uses (pasture, maize cultivation, fig cultivation, and eucalyptus cultivation), and these areas were located on the periphery (500 to 1500 m) of the Ollachea mining community of Puno in Peru; subsequently, the samples were processed in the laboratory to determine edaphic, agrochemical, heavy metal, and microbiological parameters and identify the nematodes. The abiotic stress gradient was determined by a principal component analysis; and through a canonical correlation analysis, the relati...

In vegetables, as well as in other crops, insect pests cause yield losses, therefore, in the search to solve this problem and as part of an integrated pest management, this research aimed to evaluate trapping efficiency of sticky traps for phytophagous insects present in leafy vegetables. For this, traps of different colors were installed in chard crops (Beta vulgaris), cabbage (Brassica oleracea var. capitata), lettuce (Lactuca sativa) and coriander (Coriandrium sativum). The most common insects were thrips (Frankliniella sp.), Cicadelline leafhoppers (Borongonalia sp.), aphids (Myzus persicae and Myzus sp.), psyllid (Russelliana sp.) and root fly (Diptera-Anthomiidae). Light blue and white sticky traps, show capture efficiency for thrips in 30% and 28% respectively; adults of root fly were captured with efficiency of 23% of all insects on white traps and 17% on light blue traps. Yellow...

In vegetables, as well as in other crops, insect pests cause yield losses, therefore, in the search to solve this problem and as part of an integrated pest management, this research aimed to evaluate trapping efficiency of sticky traps for phytophagous insects present in leafy vegetables. For this, traps of different colors were installed in chard crops (Beta vulgaris), cabbage (Brassica oleracea var. capitata), lettuce (Lactuca sativa) and coriander (Coriandrium sativum). The most common insects were thrips (Frankliniella sp.), Cicadelline leafhoppers (Borongonalia sp.), aphids (Myzus persicae and Myzus sp.), psyllid (Russelliana sp.) and root fly (Diptera-Anthomiidae). Light blue and white sticky traps, show capture efficiency for thrips in 30% and 28% respectively; adults of root fly were captured with efficiency of 23% of all insects on white traps and 17% on light blue traps. Yellow...

57 samples of 500 g of coffee were evaluated to compare the quality of coffee cup, in the rural sectors of the San Juan del Oro areas in Sandia - Puno and Apollo in Franz Tamayo - La Paz. Both production areas are located in an ecological floor that varies between 1300 to 1400 msnm, this being an important factor, since high-quality coffee is obtained at more than 1200 msnm. For the evaluation of the samples in each production area of San Juan del Oro and Apollo, two samples (500g each) were made, first at 10% and second at 30% of the best samples for the evaluation of mixtures or blends. The best quality coffee was obtained 88.7 evaluation points of coffee beans from San Juan del Oro and 86.5 points in Apolo. The best cup organoleptic profile was presented in San Juan del Oro coffee with notes of "floral, honey, jasmine, complex", while in Apollo it was "citrus, floral, tangerine", rese...

57 samples of 500 g of coffee were evaluated to compare the quality of coffee cup, in the rural sectors of the San Juan del Oro areas in Sandia - Puno and Apollo in Franz Tamayo - La Paz. Both production areas are located in an ecological floor that varies between 1300 to 1400 msnm, this being an important factor, since high-quality coffee is obtained at more than 1200 msnm. For the evaluation of the samples in each production area of San Juan del Oro and Apollo, two samples (500g each) were made, first at 10% and second at 30% of the best samples for the evaluation of mixtures or blends. The best quality coffee was obtained 88.7 evaluation points of coffee beans from San Juan del Oro and 86.5 points in Apolo. The best cup organoleptic profile was presented in San Juan del Oro coffee with notes of "floral, honey, jasmine, complex", while in Apollo it was "citrus, floral, tangerine", rese...

57 samples of 500 g of coffee were evaluated to compare the quality of coffee cup, in the rural sectors of the San Juan del Oro areas in Sandia - Puno and Apollo in Franz Tamayo - La Paz. Both production areas are located in an ecological floor that varies between 1300 to 1400 msnm, this being an important factor, since high-quality coffee is obtained at more than 1200 msnm. For the evaluation of the samples in each production area of San Juan del Oro and Apollo, two samples (500g each) were made, first at 10% and second at 30% of the best samples for the evaluation of mixtures or blends. The best quality coffee was obtained 88.7 evaluation points of coffee beans from San Juan del Oro and 86.5 points in Apolo. The best cup organoleptic profile was presented in San Juan del Oro coffee with notes of "floral, honey, jasmine, complex", while in Apollo it was "citrus, floral, tangerine", rese...

57 samples of 500 g of coffee were evaluated to compare the quality of coffee cup, in the rural sectors of the San Juan del Oro areas in Sandia - Puno and Apollo in Franz Tamayo - La Paz. Both production areas are located in an ecological floor that varies between 1300 to 1400 msnm, this being an important factor, since high-quality coffee is obtained at more than 1200 msnm. For the evaluation of the samples in each production area of San Juan del Oro and Apollo, two samples (500g each) were made, first at 10% and second at 30% of the best samples for the evaluation of mixtures or blends. The best quality coffee was obtained 88.7 evaluation points of coffee beans from San Juan del Oro and 86.5 points in Apolo. The best cup organoleptic profile was presented in San Juan del Oro coffee with notes of "floral, honey, jasmine, complex", while in Apollo it was "citrus, floral, tangerine", rese...

Cucurbitaceae contribute to the diet of the population, as well as to the economy of farmers; but are harmed by phyto-parasites like to Meloidogyne spp. The know about the root-knot nematode is empty to put suitable strategies to management. The objectives of this research were identified species of Meloidogyne genera in cucurbitaceaes and determine their distribution and occurrence in Arequipa, Peru. Roots of Cucurbita maxima, Citrullus lanatus, Cucumis melo and Cucurbita pepo were collected, identifying them by electrophoresis for the enzyme esterase. Meloidogyne spp. is present in 87.1% from places that were evaluated and M. incognita I1 (Rm: 1.00), M. incognita I2 (Rm: 1.02 - 1.07), M. incognita S2 (Rm: 0.87), M. arenaria A1 (Rm: 1.19), M. arenaria A2 (Rm: 1.19 - 1.25), M. hapla H2 (Rm: 0.95) and one specie atypical of Meloidogyne (Rm: 0.87) were identified with occurrences of 17.14%...