I've updated my Phenology Extension to v1.3 for WeeWX 4.6.2.  There
are no new features.

My WeeWX extension may be downloaded from its own Web site, which
assumes the reader has already installed WeeWX and is familiar with
its architecture and configuration.

o http://lacusveris.com/Phenology

The discussion on the Web site about phenology in general and the need
for models of insect and plant development is aimed at enthusiasts.
Casual readers may, of course, skip the boring bits.

Suffice it to say that phenology is the study of seasonal biological
development. Growth of plants and animals is dependent on food,
nutrients, water, and light. Assuming that these are abundant, the
factor that determines the speed of development is temperature. Models
of crop and insect development are thus based on daily temperatures.
Developmental stages are observed to follow the product of temperature
and time: Growing Degree-Days.

The Web site delves into chemical treatments for apple codling moth,
using this insect as an example of applying a Growing Degree-Day
developmental model to a real-world problem.  The data from a weather
station tracks daily minimum and maximum temperatures, and my WeeWX
extension charts when egg laying is likely to be occurring based on
cumulative Growing Degree-Days.  Then orchard spraying can begin with
less risk of waste due to starting too early or too late.

-- 
.. Be Seeing You,
.. Chuck Rhode, Sheboygan, WI, USA
.. Weather:  http://LacusVeris.com/WX
.. 40° — Wind NW 5 mph — Sky overcast.

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