Pests
Leptinotarsa decemlineata
The Colorado potato beetle is a specialized phytophage of Solanaceae capable of reducing potato yields by 50–60%. Completely immune varieties do not exist; breeding efforts are aimed at developing forms with relative resistance.
Mentioned in descriptions 54 varieties reference book.
The Colorado potato beetle is a specialized phytophage feeding on the aerial parts of Solanaceous crops. Adults and larvae consume leaves and stems, leading to metabolic disruption, weakening of the crop, and a loss of up to 60% of the yield. The species is characterized by high adaptability and the ability to rapidly develop resistance to insecticides.
Mechanisms of relative resistance in varieties include antixenosis, i.e., morphological features such as pubescence or leaf toughness that hinder feeding and oviposition. Antibiosis is also utilized, based on the presence of specific substances in tissues, such as alpha-tomatine, which negatively affect the pest's development and fecundity. An important factor is tolerance, expressed as the ability to rapidly regenerate green mass after damage.
Resistance assessment of varieties does not rely on standardized scales, as complete genetic immunity is absent. In scientific practice and variety trials, resistance indices are used based on criteria such as the number of overwintered individuals per 100 plants, the percentage of surviving larvae, and the degree of foliage damage scored on a scale. The resistance of a specific variety is only part of the protection system, requiring monitoring and evaluation within the framework of regional trials.
Selection based on the description text, not official resistance ratings: such data is not available in registers. Mention indicates that the trait is discussed in the variety's sources; see the variety's profile for details on what is specifically stated.
Solanum tuberosum L. · Potato
MONSANTO COMPANY, US
Solanum tuberosum L. · Potato
Lidiya Dimitrova, Georgi Avdzhiyski
Solanum tuberosum L. · Potato
MONSANTO TECHNOLOGY
Solanum tuberosum L. · Potato
Boerhave V.O.F.
Solanum tuberosum L. · Potato
MIKE LUIZANUCSI EVA
Solanum tuberosum L. · Potato
DEWEERD, Jan, US / ZALEWSKI, Jim, US / HAWKINS, Gary, US
Solanum tuberosum L. · Potato
MIKE LUIZANUCSI EVA
Solanum melongena L. · Eggplant
Solanum melongena L. · Eggplant
Solanum melongena L. · Eggplant
Solanum tuberosum L. · Potato
Kravchenko Oleksii Arsentiiovych, Podhaiets`kyi Anatolii Adamovych, Voitseshyna Nataliia Ivanivna, Bondarchuk Anatolii Andriiovych, Taktaiev Borys Anatoliiovych, Osypchuk Alla Andriivna, Nazar Stefaniia Hryhorivna, Osypchuk Andrii Antonovych,
Solanum tuberosum L. · Potato
Romaniuk Ol`ha Petrivna, Kostiuk Ivan Ivanovych, Vermenko IUrii IAkovych, Kononuchenko Alla Oleksiivna, Razkevych Mykola Pylypovych, Ostrenko Mykhailo Volodymyrovych, Tarasenko Oleh Oleksandrovych, Osypchuk Alla Andriivna, Taktaiev Borys Anatoliiovych, Na
Solanum tuberosum L. · Potato
E. Nacheva, G. Pevicharova, V. Petkova, H. Samaliev
Solanum tuberosum L. · Potato
HAMMOND DAVID
Solanum lycopersicum L. · Tomato
Mercier Jean-Claude
Solanum tuberosum L. · Potato
Instytut Ziemniaka
Solanum tuberosum L. · Potato
Pylypenko Liliia Aminovna, Razkevych Mykola Pylypovych, Svertoka Viktor IEvmenovych, Myts`ko Volodymyr Mykolaiovych, Zholudenko Oksana Vladyslavivna, Tymoshenko Tetiana Vasylivna, Tarasenko Oleh Oleksandrovych, Taktaiev Borys Anatoliiovych, Osypchuk Alla
Solanum tuberosum L. · Potato