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Water management of strawberry cultivation is one of the main problems of production in Colombia, reflected in the loss of fruit or deformation of the same. Plants of two strawberry varieties (Fragaria x ananassa Duch), were irrigated in optimum and slight hydric deficit conditions, in a high tunnel system at the Savannah of Bogotá. Environmental variables (temperature, relative humidity, PAR radiation and vapor pressure deficit) and physiological variables (canopy temperature, substrate moisture content, stomatal conductance) were monitored for five months, in order to validate the hydric status of the crop through use of water stress index – CWSI. It was concluded that the use of thermographic images is a valid tool to detect hydric stress in protected small crops, given its high correlation with other methods and is one of the most complete monitoring methods for water management, since it relates the physiological characteristics of the crop with the climatic variables that affect it.

ABSTRACT: Cutaneous adverse drug reactions (CADR) are unexpected dermatological reactions caused by medications. CADRs may mimic any type of dermatosis, including contact dermatitis (CD). This paper described a case of a CADR resulting from the topical use of benzyl benzoate in a dog. A two year old unneutered male Pit Bull was referred for a medical consultation due to skin lesions in the cervical region. The owner reported bathing this dog routinely using 10% benzyl benzoate (BB)-based scabicidal soap, without rinsing it off at the end. An ulcerative, draining maculopapular skin lesion was observed in the dorsal region of the neck extending to the interscapular region. A surgical skin biopsy was then performed and microscopically an area of ulcerated epidermis was observed with apoptosis of transepidermal keratinocytes associated with a mixed infiltrate. Interface dermatitis with a predominance of lymphocytes in the hair follicle region, multifocal areas of mild spongiosis, mild vacuolar degeneration of keratinocytes and sub-corneal pustule was also identified. Bathing with the BB-based scabicidal soap was discontinued and a new shampoo was introduced. Topical dexamethasone, neomycin sulfate, bacitracin zinc, griseofulvin, and benzocaine treatment was started. Within 48 hours of treatment, skin revitalization was already significant and total healing took place approximately three weeks after the first appointment. Considering the findings observed in this case, it can be concluded that prolonged topical exposure to BB, due to misuse of the product, may cause a CADR characterized by irritant CD in dogs.