Raspberry Pest Identification and the Disease Control in Liaoning Province
|School||Shenyang Agricultural University|
|Course||Pests and environmental security|
|Keywords||Raspberries Identification of the pathogen Pest identification Raspberry anthrax Pathogen Biology|
Raspberry (Rubus idaeus L.) Rubus Rosaceae (Rosaceae) is (Rubus L.) plants, is an ecological and economic benefits are higher shrub small berry fruit trees. In recent years with the expansion of the production area of ??Liaoning raspberry, raspberry in the production process suffered a variety of pests, some pests of raspberry caused serious economic losses. The domestic raspberry emphasis on the cultivation and management, storage and processing, and raspberry pest reports is relatively small, lack of scientific basis for the the raspberry production process of pest control. In this paper, Liaoning Province raspberry pest system survey, system Identification and Investigation on Occurrence of harmful species, more in-depth study of raspberry anthracnose. The results are as follows: 1 survey found that Liaoning Province raspberry There are currently seven kinds of infectious disease, raspberry gray mold, raspberry gray leaf spot disease, raspberry raspberry anthracnose, The raspberry leaf blight, crown gall, raspberry rust, raspberry seedling damping; of slime molds disease, the Raspberry slime molds disease; 5 raspberry physiological diseases, raspberry frost damage, raspberry shoot blight, raspberry sunburn skin disease, tree raspberry seedling sunburn, raspberry fruit cracking disease. (2) identification of through Liaoning raspberry infectious disease pathogens, were identified six species of fungi, namely: Botrytis (Botrytis cinerea Pers.), Rose-colored tail Neurospora crassa (Cercospora rosicola Pass) and plastic anthrax spores bacteria (Colletotrichum gloeosporioides), Septoria the fungi a (Septoria sp.), less separated multi--cellular the rust (Phragmidium pauciloculare), eggplant Rhizoctonia (Rhizoctonia solani); species of bacteria, namely: Agrobacterium tumefaciens ( Agrobacterium tumefaciens). Slime molds, anthracite velvet the bacteria (Fuligo septica). 3 through the investigation discovered in Liaoning Province, 28 kinds of raspberry pests, which mainly include 11 kinds of Lepidoptera, Coleoptera, Hemiptera, the other three. : Chinese arc beetle (Popillia quadriguttat) a white star flowers the beetles (Potosia brevitarsis), fall webworm (Hyphantria cunea) the the double spot tarsal firefly the leaf A (Monolepta, hieroglyphica), Apple red mite (Panonychus ulmi) purple corn borer (Ostrinia zealis varialis), thrips (Thripidae), double the cassock the armyworm (Dinumma deponens), reddish brown ash armyworm (Polia illoba), dark green color beetle (Mimela splendens), the pink bungii (Aromia bungii station), transparent-winged sparse wide wax cicada (Euricanid, Clara Kato), cinnamon tent caterpillar (Malacosoma Neustria testacea Motschulsky) wood tease the feet the moth (Culcula panterinaria), folded with yellow moth (Euproctis flaua), gray leaf spot moth (Teia ericae ), yellow the slug (Cnidocampa flavescens), the the green slug (Parasa sinica) the flat slug (Thosea, sinensis), the short amount of negative the locust (Atractomorpha sinensis) the green katydid (Holochlora nawae), spots shall stink bug (Dolycoris baccanum ), the stripes the Knight stink bug (Eurydema, gebleri), yellow Iraq margin bugs (Aeschyntelus, chinesis), tea winged bugs (Halyomorpha halys), the Oriental original Rhamnomia (Coreus marginatus orientalis), and other Festival hip firefly the leaves A (Agelastica, coerulea was), Folium the cicada (Tettigoniella viridis). Two years. 4 repeatedly collected from Shenyang, Liaoning Province, Dandong raspberry anthrax specimens, the pathogen were isolated by conventional tissue isolation and water agar method and purified to obtain pure cultures of bacteria and pathogenicity test. OK raspberry anthracnose caused by Colletotrichum gloeosporioides Colletotrichum gloeosporioides. 5 This article anthracnose pathogen Colletotrichum gloeosporioides biological characteristics of raspberry, a more systematic study. Raspberry anthracnose pathogen colony growth optimum temperature is 25 ° C; pH value of 6:00 colony growth fastest; has some influence of light on the colony growth rate, but the degree of difference of less than significant level; tested colors of C, N source medium colony growth rate, the larger the difference, mannitol is the most suitable C source, yeast extract is the most appropriate N source; in the test medium most suitable PDA The medium lethal temperature is 48 ° C; mycelium. Raspberry anthracnose disease origin of the spore optimum conditions of 20 ~ 25 ℃, pH6-8, most conducive to produce spores C source mannitol and fructose; N source is most conducive to produce spores peptone; produce spores most medium PDA, raspberry leaves, apple wedges and corn flour. Raspberry anthracnose pathogen spores initial infancy in about 2 hours, about 5h germination rate can reach 50%, more than 90% in 10h. Raspberry anthracnose pathogen germination over a wide temperature range, could germinate under 5 ℃ -40 ℃, 30 ℃ when the spore germination rate can reach 92%, between 25 ° C to -35 ° C spore germination rate of 80 % or more; germination optimum PH5 to 9; tested a variety of nutrients, the most suitable for spore germination glucose and sucrose; the conidia lethal temperature is 54 ° C. 6. Preliminary several commonly used chemicals to indoor chemical screening the raspberry anthrax bacteria. Found two fungicide raspberry anthracnose pathogen colony growth and spore germination inhibition are good, they are facilities Baogong and ketone · fluorosilicone azole; thick Duo, polymyxin and iprodione raspberry anthracnose pathogen colony growth inhibition efficiency of 75% -96%, the effect is relatively good, can be considered and comprehensive prevention and control of other diseases. According to the research findings in more than two years, some growers prevention and control experience, the development of the Liaoning raspberry integrated pest calendar.