Vasily Plotnikov

Vasily Ilyich Plotnikov (Russian: Василий Ильич Плотников; 11 January 1878 [ O.S. 30 December 1877] – 11 November 1959) was a Soviet and Uzbek entomologist. Plotnikov was the founder and long-serving director of the Turkestan Entomological Station in Tashkent (1911–1932), the first pest control research and experimental institution in Central Asia. He is regarded as a founding figure in agricultural entomology in Central Asia. Plotnikov authored the first comprehensive reference book on Central Asian crop pests and their control. Plotnikov was also the founder and first chairman of the Turkestan Entomological Society (1923).

Early in his career, Plotnikov made significant contributions to hydrobiology, describing 14 species of freshwater worms. He also conducted influential research on the mechanism of insect molting; the findings were widely integrated into contemporary entomological reference textbooks. His academic credentials and honors included a Doctor of Biological Sciences degree (1935), a Professor (1935), and the title of Hero of Labor of the Uzbek SSR (1930).

Biography and career

Early research in Saint Petersburg: flatworms and insect physiology Plotnikov was born on 11 January 1878 [ O.S. 30 December 1877] into a middle-class (meshchanin) family in Tomsk, Siberia. After graduating from the Tomsk Real School in 1896, he enrolled at the Saint Petersburg Forestry Institute. There, he studied under the prominent zoologist and entomologist Professor Nikolay Kholodkovsky.

At Kholodkovsky's recommendation, Plotnikov spent the summers of 1899 and 1900 working at the Bologoye Biological Station, where he studied freshwater worms and published his first scientific paper in 1899.

On 28 December 1903, Plotnikov was elected a Fellow of the Saint Petersburg Society of Naturalists.

In 1901–1908, Plotnikov served as a conservator—managing the museum and laboratory collections—at Kholodkovsky's Department of Zoology and Comparative Anatomy at the Military Medical Academy in Saint Petersburg. During this period, Plotnikov focused on the taxonomic study of worms, describing 14 new species—predominantly freshwater flatworms (Turbellaria).

In 1908–1911, Plotnikov worked as an assistant in the laboratory of the Forestry Department of the Ministry of Agriculture and State Property under the noted entomologist Ivan Shevyryov, focusing on forest pest control.

Turkestan Entomological Station in Tashkent In 1911, on the recommendation of Shevyryov, Plotnikov was appointed to organize and head the newly established Turkestan Entomological Station under the Department of Agriculture and State Property of the Turkestan Governor-Generalship in Tashkent, a post he held until 1932. It was the first entomological station in Central Asia.

The Insectarium of the Turkestan Entomological Station in Tashkent: it had glass walls (facing south, east, and west), the ant-proof support posts, and the dual ventilation (Plotnikov, 1926).

The station's principal research focused on the major agricultural pests of the region, particularly locusts (the migratory locust, Locusta migratoria and the Moroccan locust, Dociostaurus maroccanus), the mountain bug (Dolycoris penicillatus), and cotton pests. The station operated primarily as a scientific and advisory institution. Its core functions included research on the region's insect pests and entomofauna, detailed studies of locust biology, the development of effective pest control methods, the publication of books, recommendations, and educational materials, and public outreach through lectures, brochures, a museum of applied entomology, instructor training, and public consultations on pest management.

Over time, the station expanded its fieldwork beyond Tashkent into Bukhara, Samarkand, and the Fergana Valley, conducting research on the Moroccan and Italian locusts, spider mites, Caradrina moths, and cotton bollworms. In 1912, Plotnikov participated in a meeting with representatives of the cotton industry that led to the establishment of the Bukhara Entomological Station (Shirabudin). In 1916, he secured authorization from Governor-General Fyodor Martson to establish microbiological and bacteriological laboratories at the station, expanding its research capacity beyond field investigations to include laboratory studies of pest biology.

Among the prominent scientists who worked at the station were Nikolay Zaprometov, Aleksei Zachvatkin (Yazykov), Valerian Nevsky, Petr Archangelsky, Vladimir Serbinov, Vladimir Yakhontov, Rakhim Alimdjanov, N.N. Nikolsky, E. N. Ivanov, A. E. Rodd, Z. S. Vedeneeva, N. N. Troitsky, I.A. Sevastyanov, A. F. Radetsky, N. B. Teikh, M. A. Karimov, and K. I. Mirpulatov. The station introduced modern chemical methods of plant protection to Central Asia, where the use of chemical control measures had previously been little known, and played an important role in their development and wider adoption. According to the journal Plant Protection, the Turkestan Entomological station "played an enormous role in training, particularly among the indigenous national cadres, specialists in entomology, phytopathology, and zoology for numerous research institutions, educational establishments, and agricultural organizations in Uzbekistan, Tajikistan, Turkmenistan, Kyrgyzstan, Kazakhstan, and other republics of the Soviet Union."

In 1925, the Turkestan Entomological Station was substantially expanded and reorganized as the Uzbek Plant Protection Station (UzSTAZRA). It subsequently gave rise to a succession of specialized plant protection institutions, including the Central Asian Institute of Plant Protection (SAIZR), ultimately evolving into the USSR's Central Asian Scientific Research Institute of Plant Protection and its successor, the present-day Research Institute of Plant Quarantine and Plant Protection of Uzbekistan.

Dedication page from Vladimir Yakhontov's 1928 monograph, reading in Russian: "Dedicated to the father of Central Asian Agricultural Entomology, Vasily Ilyich Plotnikov"

In recognition of his contributions, the Government of the Uzbek SSR awarded Plotnikov the honorary title of Hero of Labour of the Uzbek SSR in 1930. The prominent Uzbek entomologist Vladimir Yakhontov described Plotnikov as the founding father of Central Asian agricultural entomology in his 1928 monograph.

Alongside his research, Plotnikov taught entomology at the Agricultural Faculty of the Central Asian State University (SAGU) from 1918 to 1931. In 1931, he was elected the university's representative to the Tashkent City Council.

Beyond his research output, Plotnikov was known for supporting both visiting and local scientists. According to the memoirs of biologist Boris Kuzin, Plotnikov helped organize collecting expeditions for the prominent Moscow entomologists Boris Rohdendorf and E. S. Smirnov to Samarkand and the Transcaspian region (present-day Turkmenistan) in 1922, where they collected butterflies and other insects. In 1925, Rohdendorf described a new species of flesh fly, naming it Sarcophaga plotnikovi in Plotnikov's honor. In their 1927 study of the ecology of the Turkestan yellow ground squirrel, Daniil Kashkarov and L. Lein-Sokolova also expressed their gratitude to Plotnikov for "his sympathetic attitude toward their work, the interest he took in it, and his material support in carrying it out."

Later academic career: Pyatigorsk, Ufa, Tashkent, Lviv In 1932, Plotnikov relocated to the North Caucasus, where he taught zoology at the North Caucasus Institute of Horse Breeding in Pyatigorsk. From 1933 to 1936, he served as a professor of entomology at the Bashkir Agricultural Institute in Ufa.

In 1935, Plotnikov was awarded the academic degree of Doctor of Biological Sciences and the title of Professor without defending a dissertation, in recognition of his extensive scientific contributions.

He returned to Tashkent in 1936, joining the faculty of the Central Asian State University again to teach histology and embryology until his retirement in 1941. During World War II, he remained in Tashkent on an academic pension. In 1926, Plotnikov published his most extensive work in agricultural entomology, Insects Injurious to Economic Plants in Central Asia, a 292-page compendium that compiled decades of research at Turkestan Entomological Station Plotnikov also integrated environmental factors into pest forecasting and modernized regional agricultural infrastructure by publishing the first bilingual Russian-Uzbek terminology guide for crop protection. Macrostomum infundibuliferum Plotnikow, 1905 Papiella otophthalma (Plotnikow, 1906) Mack-Fira, 1970 Microdalyellia erivanica (Plotnikow, 1906) Gieysztoria sibirica (Plotnikow, 1905) Ruebush & Hayes, 1939 Gieysztoria virgulifera (Plotnikow, 1906) Ruebush & Hayes, 1939 Cylicobdella costaricae (Plotnikow, 1905) – a terrestrial leech native to Costa Rica in Central America, described by Plotnikov from specimens kept at the Imperial Academy of Sciences in Saint Petersburg.

Insect Physiology While at the Forestry Institute, Plotnikov also conducted pioneering research on insect cuticle shedding. His graduation manuscript, "On the Molting of Insects" ("О линянии насекомых"), won the Gold Medal of the Institute's Academic Council in 1901 and was published in German in 1904 as "Über die Häutung und über einige Elemente der Haut bei den Insekten". The study established how the chitinous cuticle separates and slides from the hypodermis via a specialized "plasmatic layer" during a molt. It also demonstrated the three-cell structure of larval glands across various insect larvae (including mealworms, leaf beetles, and ladybugs). These findings were widely incorporated into later entomological textbooks. The grasshopper species Plotnikovia lanigera Umnov, 1930 The grasshopper species Dociostaurus plotnikovi Uvarov, 1921 The grasshopper species Conophyma plotnikovi Uvarov, 1927 The grasshopper subspecies Gomphomastax clavata plotnikovi Bolívar, 1927 The aphid species Brachyunguis plotnikovi (Nevsky, 1928) The pistachio seed wasp Eurytoma plotnikovi Nikol'skaya, 1934 The flesh fly species Sarcophaga (Heteronychia) plotnikovi Rohdendorf, 1925

Selected publications

Plotnikov authored over 60 scientific publications

Hydrobiology

Nematoda, Oligochaeta, and Hirudinea Found in Lake Bologoye and its Vicinity in 1899 [Nematoda, Oligochaeta i Hirudinea, naydennye v Bologovskom ozere i ego okrestnostyakh v 1899 g.]. Trudy Presnovskoy Biologicheskoy Stantsii [Proceedings of the Freshwater Biological Station of the St. Petersburg Society of Naturalists], 1901. Vol. 1, pp. 244–251. On Some Rhabdocoel Turbellarians of Siberia [Über einige rhabdocöle Turbellarien Sibiriens]. Zoologische Jahrbücher, 1905. Vol. 21, No. 4, pp. 479–490. Glossiphoniidae, Hirudinidae, and Erpobdellidae of the Zoological Museum of the Academy of Sciences [Glossiphoniidae, Herudinidae i Herpobdellidae Zoologicheskogo muzeya Akademii Nauk]. Ezhegodnik Zoologicheskogo Muzeya Akademii Nauk [Annuary of the Zoological Museum of the Academy of Sciences], 1905. Vol. 10, pp. 133–158. The Rhabdocoel Turbellarians of the Vicinity of Lake Goktscha [Die rhabdocölen Turbellarien der Umgebung des Goktscha-See]. Zoologische Jahrbücher, 1906. Vol. 23, No. 3, pp. 395–400. Leeches from the Vicinity of Saratov [Piyavki iz okrestnostey g. Saratova]. Proceedings of the Volga Biological Station [Raboty Volzhskoy biologicheskoy stantsii], 1909. Vol. 3, Issue 3, No. 5. pp. 11-17.

Insect Physiology

On Molting and on Some Elements of the Cuticle in Insects [Über die Häutung und über einige Elemente der Haut bei den Insekten]. Zeitschrift für wissenschaftliche Zoologie, 1904. Vol. 76, No. 3, pp. 334–336.