Pang has long been engaged in the teaching and research of entomology and ecology. He founded the Insect Ecology Laboratory, presided over a number of national, provincial and ministerial major research projects, introduced the theory and methods of system science into the field of insect population ecology, and put forward the theory and research technology of pest population control system. In recent years, he also put forward a new idea of using secondary compounds from exotic plants to control pests. According to the concept of species, he rearranged the classification system of ladybugs, sorted out nearly 700 species of ladybugs distributed in China and its adjacent areas, published nearly 65,438+000 new species of ladybugs, established a new subfamily, and published 65,438+02 new species of Trichogramma and Papilio. He founded the demonstration base of ecological agriculture in Longgang, Shenzhen, which integrates teaching, scientific research and scientific and technological demonstration. As a national key discipline and the key laboratory of entomology and toxicology of the Ministry of Agriculture, it has made important contributions to the development of entomology in South China Agricultural University.

1, insect population ecology and pest population system control

As early as studying in the Soviet Union, Pang realized that insect ecology, especially insect population ecology, was the basis of pest control. He eagerly read a lot of related books and documents, and studied the influence of Swedish wheat straw fly. After returning to China, I published a paper in Journal of Entomology 1962 according to my own research practice and understanding. In view of the periodicity of pest infestation and the balance of the number of pests, this paper expresses a completely different view on Mr. Ma Shijun's assertion that abiotic factors (such as climate) are the key factors affecting the occurrence of pests, and holds that biological constraints are the key factors affecting the occurrence of pests. This triggered an academic discussion. At the same time, a paper on the influence of temperature on insect respiratory intensity was published. A new concept of insect respiration constant temperature zone is put forward, which has attracted the attention of colleagues at home and abroad.

During the ten-year turmoil in China, the work of scientists in China was seriously disturbed, and the research field of international pest control developed rapidly. Among them, there are two most prominent aspects, one is the proposal of IPM strategy, and the other is the application of system science theory and technology in the field of biological research, which makes the research of pest control enter a new stage. After bringing order out of chaos from 65438 to 0978, he was keenly aware of the significance of the two major developments in the international pest control field to the future plant protection work, and was determined to introduce systematic science into the comprehensive pest management research and create a new situation in the pest control work in China. 1978+the opportunity of attending an academic conference in Beijing in June, 2000, he confessed his ideas to the older generation of entomologists in China and Professor Guan of China Agricultural University, and got strong support from Mr. Guan. After returning to school, he led his graduate students and a group of teachers to start this pioneering work based on Hailing Island, Yangjiang, Guangdong Province, a demonstration site for integrated rice pest control, which started in 1974. In the next 20 years, on the one hand, he taught himself the theory and method of system science and applied it to the study of pest population dynamics; On the other hand, in cooperation with Professor Ceng Shimai, a plant pathologist at China Agricultural University, we established the National Plant Protection System Engineering Committee and held several national plant protection system engineering seminars to promote the development of this field. During this period, he often met with mathematicians and system science experts from South China Agricultural University, South China University of Technology and Sun Yat-sen University to discuss the technical problems of applying system science to ecological research. After years of research, based on the previous achievements, this paper puts forward the theory of pest population system control, and develops a set of corresponding research methods, including clearly defining the concept of "population system" and putting forward the research objectives and scope; The principle and method of establishing the population state equation suitable for the research and application of insect population system are put forward. The problem of establishing a pest population system model with the functions of population dynamic prediction and optimal population control is solved. The technology of population life table is improved and developed, and the method of evaluating the effect of various factors on population control and the information processing method of multi-population storage system are put forward. These theories and methods have been applied and verified in the practice of integrated pest management in Hailing Island. 1990 co-authored with Professor Ceng Shimai, and published The Application of System Science in Plant Protection Research. 1994 completed the monograph "systematic control of pest population", and established and systematically expounded the theory and method of systematic control of pest population.

2. Insect population ecology and pest ecological control

Insect population ecology plays an important role in pest control based on production system. Pang introduced the theory and method of system science into the study of population ecology. He led graduate students to systematically and deeply study the composition, structure, diversity, stability and similarity of arthropod communities in various important agricultural ecosystems, published a series of papers, and cooperated with student You Minsheng to compile and publish the first textbook of insect community ecology in China.

Pang and his disciples studied the relationship between crop ecosystem structure and pest control function with the same scientific thinking on the basis of systematic pest population control and insect community ecology. According to the goal of pest ecological control, a relatively complete research method of pest ecological control was formed, and the monograph "Ecological Control of Pest Population" was published in 2002. His disciples inherited and developed his academic thoughts, further put forward the scientific concept of pest ecological control system based on biodiversity restoration and protection, and established a series of important crop pest ecological control systems, which made remarkable achievements in pest control, food safety, biological invasion, biological safety and environmental protection, and made important contributions to the country.

3. Classification, utilization and biological control of natural enemy insects

Influenced by Professor Pu Zhelong, the "father of biological control in South China", Pang became interested in the classification and utilization of natural enemy insects and biological control as early as during his study in the Soviet Union. His wife, Li Liying, studied in the Soviet Union and worked in biological control after returning to China. Their common language and common interests have strengthened their ideal of contributing to the motherland in the field of biological control. 1966 published his first book "Description of New Species of Coccinellidae in Guangdong Province" (COLEOPTERA: Coccinellidae). 1975 systematically sorted out the species of mite-eating ladybugs in China. 1979 cooperated with Mao Jinlong to publish the monograph Economic Insects of China, Volume 14, and established the classification system of ladybugs in China. During the period of 1982, he went to the United States for cooperative research, and used some model specimens of ladybugs from Washington Museum, British Museum, Fukui University Botanical Museum and Paris Museum of Natural History for reference, systematically arranged ladybugs in China, which greatly promoted the research of ladybugs in China. Later, in cooperation with Professor Huang Bangkan of Fujian Agriculture and Forestry University, ladybugs in Wuyishan Nature Reserve were systematically collected and sorted. In cooperation with researcher Pu Tiansheng of Guangxi Academy of Agricultural Sciences, ladybugs in Guangxi were collected and sorted. In my life, I published 34 papers on classification of ladybugs, including new species of ladybugs 125 species. He also trained a group of ladybug classification talents. At present, most experts engaged in ladybug classification in China are his graduate students. In addition, he also published 12 new species of Trichogramma and Papilio sinensis.

It can be said that it is Pang's lifelong pursuit to classify and utilize natural enemy insects and make biological control benefit mankind, even in the most difficult time. During the ten-year turmoil, when normal teaching and scientific research could not be carried out, he participated in the Guangdong Biological Control Task Force headed by Li Liying, as the main backbone to promote the biological control technology of pests in the first line of agricultural production in Leizhou Peninsula, Guangdong Province. Leading teachers and students to Hailing Island, Guangdong Province to establish a demonstration zone of integrated control of rice pests and diseases, which is mainly based on biological control, echoes the demonstration zone established by Professor Pu Zhelong in Dasha, Sihui, Guangdong Province, and has had great influence at home and abroad. A number of backbones of biological control of agricultural pests have been trained, which has contributed to increasing farmers' income and agricultural development. At the same time, I also participated in the compilation of Atlas of Natural Enemies and Illustration of Natural Enemies of Rice Pests.

4. Biodiversity research and nature reserve construction

Pang has long been engaged in entomology and ecological research. For half a century, he has carried out insect specimen collection and special investigation activities in nature reserves all over the country.

Pang devoted himself to the study of nature reserve construction at the end of the 20th century. 65438-0988, leading graduate students to engage in ladybugs research in Chebaling National Nature Reserve. 1autumn of 992, at the invitation of Guangdong Forestry Society, participated in an expert delegation to inspect Nanling Provincial Nature Reserve. After investigation, the expert group suggested that Nanling National Nature Reserve should be established on the basis of five provincial nature reserves, such as Babaoshan in Ruyang, Weighing Frame in Yangshan, Dadingshan, Longtanjiao and Dadongshan in Lianzhou. Pang consulted a large number of documents, studied the evolutionary history of paleontological communities in South China, investigated the biodiversity in Nanling, and put forward the scientific conclusion that Nanling and Lingnan are particularly rich in biodiversity, which plays an irreplaceable role in biodiversity protection in South China. At the end of 1993, with the approval of the State Council, Nanling National Nature Reserve was formally established. During the period of 1996, Pang was invited to edit the book Biodiversity Research in Guangdong Nanling National Nature Reserve. He went deep into the northern mountainous area of Guangdong for many times and climbed the Shikengkong, the highest mountain in Guangdong, at an altitude of 1902 meters for three times. After countless days and nights of painstaking efforts, it was finally published in 2003. This book is highly praised by all walks of life and is collected by the Library of Congress. In addition to Nanling National Nature Reserve, Pang has also made great contributions to the construction of several provincial nature reserves such as Shimentai in Guangdong.

5, crop protection engineering and plant protectant research.

1999, according to the co-evolution principle of insects and plants, Pang put forward new concepts of crop pollution-free engineering and plant protection agent, that is, changing the composition of crop secondary compounds through genetic engineering to achieve the purpose of expelling pests and using foreign plant secondary compounds to drive pests, established research methods of plant protection agent, and opened up a new field of plant protection research. Pang has won many national, provincial and ministerial science and technology awards. These include:

200 1 Economic Insects in China won the second prize of National Natural Science;

1978 "Using Trichogramma to control rice leaf roller" won the Guangdong Science Award;

1979, "Classification of Ladybugs" won the first prize of technical progress of the Ministry of Agriculture;

1989 "illustration of natural enemies of rice pests" won the second prize of scientific and technological progress of the state education commission;

1998 "phylogeny of important wasp groups" won the second prize of natural science of China Academy of Sciences.

1985 "research on integrated control of rice diseases and insect pests based on biological control" won the third prize of national scientific and technological progress;

1989 "system engineering achievements in pest population control" won the outstanding achievement award of Guangdong system engineering;

65438-0995 "Control of Pest Population System" was published by Guangdong Excellent Scientific and Technological Works Publishing Fund, and was included in the national contemporary important scientific and technological works publishing plan (agricultural field);

200 1 Systematic Control of Pest Population won the second prize of Guangdong Natural Science. Young and middle-aged experts with outstanding contributions at the national level and national advanced scientific and technological workers.