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Studies on species composition of migratory aphids with the use of Johnsons aspirator were carried out in the Agricultural Experimental Station Winna Góra in 2002–2009. The results of performed research revealed the presence of 109 aphid species. Data on their occurrence frequency showed that most numerous species were cereal aphids and accounted for 60% of all species. The most frequent cereal aphid were Rhopalosiphum padi and Sitobion avenae.
Codling moth (Cydia pomonella) is one of the most important pests occurring in apple orchards in all regions of apple tree cultivation. A number of pest generations mainly depends on climatic conditions. Increasing frequency of chemical treatments led to acquisition of pest resistance to a considerable number of recommended plant protection products. Thus, considering apple orchard protection against the codling moth a special emphasis should be paid to proper selection of plant protection product and a treatment date based on flight dynamics monitoring of the pest. In Poland, a pheromone trap of „Delta” type is commonly used for the codling moth catches. The aim of presented study was to assess usefulness of different type of traps for monitoring dynamics of codling moth flights. Four chimney traps of different color (white, yellow, green of Medchem firm), one green trap of „English” type and a trap of „Delta” type as a standard were used. The experiments were performed in 2009 in apple orchards of 5 different localities (nerby Gdańsk, Poznań, Grójec, Sandomierz and Nowy Sącz). In each locality 2 replications (5 different types of traps in 2 orchards) were done. The results of performed experiments realed the highest efficacy of the following traps: „Delta” trap and chimney green trap, white the last effective was a trap of „English” type.
The bird cherry-oat aphid (Rhopalosiphum padi L.) development on primary host (Prunus padus L.) was studied in Poznan in 2007–2008. First fundatrices of R. padi were observed already on the bird cherry in March in both years. The largest condensation of population was observed in May. At the second decade of May numerous winged morphs were formed and spring migration into the secondary hosts started. Re-emigrants in September were observed and the oviparae and males in second decade of October gave birth. In spring observations fertilized eggs (from which aphids hatched) made up 89% and 81% respectively. The meeting of factors inducing the formation of individual morphs of R. padi and the deadlines of the migration on host-plants has a special meaning in the aspect of transfer of viruses by the anholocyclic forms of this species.
During the last 20 years, Polish scientific papers on crop protection were rarely dealt with migration biology and crops’ infestation by arthropods. In presented paper research methods of insect’s migration were discussed as well as difficulties in statistical inference based on the migratory behaviour of oilseed rape pests (SADIE). Studying arthropods migrations by comparing groups of measuring points parallely placed in increasing distances from the edge of field, is not very useful. Such approach considers a priori a regular insects movement into crop canopy. Presented results, are based on research conducted earlier.
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