Efficacy of organic products against insect pests in alfalfa grown for seeds
Journal Title: Journal of BioScience and Biotechnology - Year 2017, Vol 6, Issue 2
Abstract
Organic pesticides can be excellent alternatives to chemical pesticides. They occupy an important place in the plant protection sector. Evaluation of the efficacy was conducted using an alginate from seaweed (organic insecticide) and two organic fertilizers (highly concentrated complex organic fertilizer and natural CO2 fertilizer), used alone and in combinations to control major pests in alfalfa seed production such as alfalfa seed chalcid Bruchophagus roddi Guss., alfalfa plant bug, Adelphocoris lineolatus Goeze and pea aphid, Acyrthosiphon pisum Harr. We conducted field trials during three growing seasons. Treatments were carried out at the beginning of the flowering stage in second regrowth. The seaweed alginate had high efficacy and excellent control on the three insect species density one week after treatment (over 80%), while the complex organic fertilizer exhibited insecticidal action against pests and its effect exceeded 60% seventy days after treatment and provided a medium level of control. The mix of the two organic products provided the highest efficacy and long-lasting effects on the three insect species and additive effects were observed. The combination realized the highest seed yield and an increase of 29.7%. Treatment with organic products is suitable for organic farming.
Authors and Affiliations
Ivelina Nikolova, Natalia Georgieva
Keywords
Related Articles
- EP ID EP602493
- DOI -
- Views 63
- Downloads 0
Molecular analysis of ovine calpastatin (CAST) and myostatin (MSTN) genes in Synthetic Population Bulgarian Milk sheep using PCR-RFLP
The aim of present study was to investigate the polymorphism of calpastatin and myostatin genes in sheep from Synthetic Population Bulgarian Milk (SPBM) breed because they are considered as candidate genes for meat...
Biosocial characteristics of patients with paranoid schizophrenia
Schizophrenia is known as a complex disorder that combines both genetic and environmental factors. Different genes have been tested as candidates for association with schizophrenia and different environmental factors ha...
Allelopatic effects of some medicinal plant essential oils on plant seeds germination
The effect of essential oils from some medicinal plants on seed germination was studied with the aim of assessing their potential use as bioherbicides. The experiment was conducted as factorial based on completely random...
Qualitative and quantitative determination of protopine in Fumaria spp. by TLC-densitometry method
A rapid and accurate TLC-densitometry method for qualitative and quantitative determination of protopine has been developed. The best separation was achieved using a mobile phase chloroform – ethyl acetate – methanol – a...
Meiotic changes in Vicia faba L. subsequent to treatments of hydrazine hydrate and maleic hydrazide
Assessing the impact of mutagens for creating variations in crops like faba bean (Vicia faba L.) is an important criterion in the contemporary world where food insecurity and malnutrition is alarming at the doors of vari...