Posted 5/21/2020 16:06 (#8271858 - in reply to #8271819) Subject: RE: Blossom end rot control?
coast of Maine
Moisture up and down will bring about this imbalance issue.Not wholly calcium but supplemental will help some.Pull off all black bottom tomatoes,are plants set too low or too high in garden ? Are your soils tight clay ?are you watering too lightly? dig down be sure base gets damp as welll as top of soil.There is possibly a need of a bit of epsom salt next irrigation,perhaps some chelated iron also.Supported Plants ? do so if not .Prune some excess suckers off but not all,Are your plants determinate (short suckers ) or reach for the sky ? If they are non determinate you will correct this fine . Determinate may flop.Usually brought solely by h20,magnesium calcium ratios or a garden that lacks adequate nutrients and hinders plants ability to maintain its fruit,Is the plant stem thick ?Are you seeing purple tops? all point to lack of basic NPK, have you seen this before ? do you always buy plants at big box ? If so some get growth hormone so that can frig them up when stressed. Good Luck.30 years ago lost an entire large greenhouse of tomatoes in May ?june to BER,was I stressed ,talked to an old time grower,,,,ahhh theres nothing to it vincent...I just put em in and keep em moist ,never dry never wet....he was right,,,nothing to it, hehe,