Botrytis spp

Botanical gums Botanicals Botrilex Botrytis cinerea Botrytis spp. 

Uses Vulcanizer seed disinfectant rubber accelerator rabbit, deer and rodent repellent bacteriostat in soap. Protective fungicide applied to foliage to control Botrytis spp. On ornamentals, lettuce, soft fruit, and vegetables Venturia pirina on pears. Also used in fields and orchards to control birds, rodents, and deer (Worthing and Hance, 1991). Prevents infestation of... 

Hirayae, K. Hirata, A. Akutsu, K. Hara, S. Havukkala, I. Nishizawa, Y. Hibi, T. (1996)/n vitro growth inhibition of plant pathog ic fungi, Botrytis spp., by Escherichia coli transformed with a chitinolytic enzyme gene from a marine bactmum, Alteromonas sp. Strain 79401. Ann. Phytopathol. Soc. Jpn., 62, 30-6. 

Chlorothalonil, a chlorophenyl introduced in the mid-1960s, is a major protectant fungicide. It is used alone or in mixtures to control Septoria spp. in cereals, Phytophthora infestans in potatoes and Botrytis spp. in vegetables. 

Botrytis spp. grey mold of grape and other crops... 

Schonbeck, F., and Schroeder, C., 1972, Role of antimicrobial substances (tuliposiodes) in tulips attacked by Botrytis spp., Physiol. Plant Pathol. 2 91-99. 

Control wide range of pathogens like Tapesia yallundae, T. acuformis, Erysiphe spp., Pyrenophora teres, Rhynchosporium secalis, Botrytis spp., in cereals, grapes, pome fruit, stone fruit, strawberries, vegetables, field crops and ornamentals, barley Altemaria spp., Venturia spp. and... 

Diethofencarb can be used against benzimidazole-resistant strains of Botrytis spp. It also inhibits mitosis. It is quickly degraded in soil and in animals through oxidation of the 4-ethoxy group. 

If it were possible to develop two pesticides such that increased resistance to one of them led to increased susceptibility to the other, resistance development would at least be delayed. There is one example of this principle. The systemic fungicide diethofencarb is particularly effective against Botrytis spp., which are resistant against benzimidazole. Benzimidazoles like car-bendazim and thiophanate bind to a site on the tubulin protein and inhibit mitosis. Resistant Botrytis has a tubulin that does not bind benzimidazoles, but may bind diethofencarb better. 

It is synthesised by the nitration of 1,2,4,5-tetrachlorobenzene. It was used initially for the protection of stored potato tubers and to inhibit their sprouting. Because of its volatility, it was later used as an aerosol against Botrytis spp. in greenhouses. However, it may be phytotoxic under extreme temperature conditions, or in treatment carried out in direct sunlight (Brown, 1947). 

In the course of time several combinations of active substances have been introduced. Zineb combined with copper oxychloride exhibits a synergistic effect (Payen et al., 1954). The antifungal action of ziram against Botrytis spp. is increased by several orders of magnitude by the addition of complex-forming organic compounds e. g., 2-iminocyclopentane dithiocarboxylic acid (36) (Matolcsy et al.,... 

Ezomycin, effective against Sclerotinia and Botrytis spp., is obtained from Streptomyces cultures. In Japan it has been used against the stem rot of kidney bean (Sakata et a/., 1974). 

Isol. from broad beans (Vidafaba) infected with Botrytis spp. 

Linseed and flax are susceptible to some important seed borne diseases. No more than 5% of seeds should be infected with the following Botrytis spp., Alternaria spp., Fusarium spp., Colletotrichum Uni and Ascochyta linicola. (In the case of flax seed even more stringent conditions apply and no more than 1% of seed should be contaminated with. linicola.) Seed crops are normally sprayed with an approved fungicide before the end of flowering in order to try to achieve these standards. 

Beans, peas Chocolate spot and grey mould Botrytis spp. Botryotinia fitckeliana ... 

Figure 5.9 Examples of furanoacetylenes isolated from edible parts of broad bean (V/c/a faba) and/or lentil [Lens culinaris) upon infection with Botrytis spp.

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