Aphid complex associated with potato in agro-climatic conditions of Kosovo

F. Musa¹, D. Krasniqi² and S. Musa¹*

¹University of Prishtina, Faculty of Agriculture and Veterinary, Plant Protection Department, Boulevard Bill Clinton p.n. Prishtina, XK10000 Prishtina, Republic of Kosovo
²Phytosanitary Corporate Sara&Meti sh.p.k. Prishtina. Analytical, Food and Agriculture Laboratory, Street Kamer Loshi No.76. XK10000 Prishtina, Republic of Kosovo
*Correspondence: sarandamusa1@gmail.com

Abstract:

Field surveys for aphids infesting potato crops in three most important localities for potato production in Kosovo (Podujevë, Prishtinë and Vushtrri) were conducted in vegetation seasons of 2018–2019. With the purpose to monitor and confirm the aphid composition in potatoes, aphid leaf count was used as a method which is applied worldwide. Sampling for aphids from the leaves of potato plants was undertaken during cropping season, every 10 days, where 100 leaves were taken at random and checked in triplicates, from each field. During of this experimental work, the following aphid species were registered Myzus persicae, Macrosiphum euphorbiae, Aphis nasturtii and Aulacorthum solani. From the total number of aphids recorded (4,210 individuals), the following percentage belongs to the different aphids: M. persicae (57.24%), A. nasturtii (25.72%), A. solani (7.77%), M. euphorbiae (5.68%), and other none identified aphids (3.59%). Relying on the results of this research we have confirmed to exist statistical significant differences with regard to the number of aphid’s species according to the localities and aphids that infests the potatoes. With the goal to manage and control aphids spread infields with potatoes, it is extremely useful to evaluate and to see the possibility for an Integrated Management against these pests at farmer level.

Key words:

ANOVA, aphids, Myzus persicae, potato

The occurrence and control of aphids and thrips in winter triticale

R. Smatas

Lithuanian Institute of Agriculture, Instituto aleja 1, Akademija, Kedainiai dist., LT58344,Lithuania; remigijus@lzi.lt

Abstract:

Studies were carried out at the Lithuanian Institute of Agriculture during the period 2002–2004. Contact and systemic insecticides were used for pest control in winter triticale. Pesticide application timing was determined according to the threshold of harmfulness of thrips and aphids. In our investigation we used as the threshold of thrips’ harmfulness, 1–2 pests per stem, and for aphids, 5–10 pests per stem. Our results suggest that thrips and aphids were the main pests occurring in winter triticale crops during the experimental years. The occurrence of thrips was more intensive in 2002 and 2003 than in 2004. The occurrence of aphids was the most intensive in 2002, less intensive in 2004. Almost no aphids were found in 2003. The appearance of aphids in 2004 was later compared with that in 2002. Both insecticides reduced the occurrence of thrips and aphids. The winter triticale grain yield was higher in the plots applied with insecticides.

Key words: