---
product_id: 4489515
title: "Rot-Stop Tomato Blossom End Rot, 32 oz Ready-to-Use Spray"
brand: "bonide"
price: "€ 36.49"
currency: EUR
in_stock: true
category: "Bonide"
url: https://www.desertcart.pt/products/4489515-rot-stop-tomato-blossom-end-rot-32-oz-ready-to
store_origin: PT
region: Portugal
---

# foliar spray for quick calcium absorption targets blossom end rot in tomatoes & more 32 oz ready-to-use liquid Rot-Stop Tomato Blossom End Rot, 32 oz Ready-to-Use Spray

**Brand:** bonide
**Price:** € 36.49
**Availability:** ✅ In Stock

## Summary

> 🍅 Stop rot before it starts—your garden’s secret weapon!

## Quick Answers

- **What is this?** Rot-Stop Tomato Blossom End Rot, 32 oz Ready-to-Use Spray by bonide
- **How much does it cost?** € 36.49 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.pt](https://www.desertcart.pt/products/4489515-rot-stop-tomato-blossom-end-rot-32-oz-ready-to)

## Best For

- bonide enthusiasts

## Why This Product

- Trusted bonide brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Foliar Feeding Power:** Delivers nutrients directly to leaves for rapid uptake
- • **Instant Calcium Boost:** Corrects calcium deficiency fast to save your harvest
- • **Effortless Application:** Ready-to-use spray mixes instantly with water—no fuss
- • **Versatile Garden Savior:** Effective on tomatoes, cucumbers, melons, and peppers
- • **Trusted Garden Essential:** Highly rated with 4.1 stars and thousands of happy growers

## Overview

Bonide Rot-Stop Tomato Blossom End Rot Spray is a 32 oz ready-to-use liquid fertilizer designed to prevent and correct calcium deficiency in tomatoes and other vegetables. Its foliar application ensures rapid nutrient absorption, effectively controlling blossom end rot and promoting healthier, more productive plants.

## Description

BONIDE Rot-Stop® Tomato Blossom Set Spray prevents end rot in tomatoes and other vegetables. It controls calcium deficiency to prevent end rot.

## Features

- CORRECTS CALCIUM DEFICIENCY - Our garden fertilizer is used to control blossom end rot on tomatoes by adding calcium to the plant.
- CONTAINS NUTRITIONAL CALCIUM - Plant food that uses nutritional calcium derived from calcium chloride as the main active ingredient.
- MULTIPLE USES - Rot Stop is also effective at correcting calcium deficiencies for cucumbers, melons, and peppers.
- EASY TO APPLY - Product instantly mixes with water and should be applied using either a hose-end sprayer or tank sprayer. Simply spray foliage to the point of run-off. Make sure to carefully read and use according to label directions.
- FOLIAR FERTILIZATION - Intended as a supplement to a regular fertilization program and may not, by itself, provide all the nutrients normally required by crops or other intended plants.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B000OWB63O |
| Application Method | Spray |
| Best Sellers Rank | #15,848 in Patio, Lawn & Garden ( See Top 100 in Patio, Lawn & Garden ) #472 in Garden Fertilizers |
| Brand | Bonide |
| Brand Name | Bonide |
| Coverage | varies |
| Customer Reviews | 4.1 out of 5 stars 1,696 Reviews |
| Global Trade Identification Number | 00037321001676 |
| Included Components | Bonide Rot-Stop Tomato Blossom Set Spray Ready-To-Use, 32 oz |
| Item Form | Liquid |
| Item Highlight | Garden Fertilizer For Calcium Deficiency in Plants |
| Item Type Name | Bonide Rot-Stop® Tomato Blossom Set Spray Ready-To-Use, 32 oz |
| Item Weight | 2.3 pounds |
| Liquid Volume | 32 fluid ounces |
| Manufacturer | Bonide |
| Mixing Ratio | 2 oz: 1 gallon |
| Model Number | 167A |
| Number of Items | 1 |
| Number of Packs | 1 |
| Part Number | 167 |
| Specific Uses For Product | Plant Food |
| Target Species | Vegetables |
| UPC | 037321001676 |
| Unit Count | 32 Ounce |
| Warranty Description | Warranty |

## Product Details

- **Brand:** Bonide
- **Item Form:** Liquid
- **Item Weight:** 2.3 Pounds
- **Liquid Volume:** 32 Fluid Ounces
- **Specific Uses For Product:** Plant Food

## Images

![Rot-Stop Tomato Blossom End Rot, 32 oz Ready-to-Use Spray - Image 1](https://m.media-amazon.com/images/I/51Pi1ya0zzS.jpg)

## Available Options

This product comes in different **Style** options.

## Questions & Answers

**Q: is this safe to use up to date of harvest?**
A: We would recommend if you are applying on the day of harvest to make sure you thoroughly wash fruit and/or vegetables before consuming.

**Q: Is there expiration on this product**
A: According to a representative; I assume..   "A: We do not have expiration dates on our products. This is the manufacturing date. We recommend using our products 5-7 years from manufacturing date when properly stored."

**Q: Will this help Stem rot cure?**
A: Stem rot is caused by overwatering (or having mulch piled up around the stem) or from disease. Tomato blossom rot is caused by the inability of calcium and other nutrients to be able to make it into the blossom/tomato for good development and growth which can be a combination of lack of water and/or lack of nutrients in the soil. I use the the Bonide  Rot-Stop as part of my defense against blossom end rot as I can only grow my plants in pots on my deck. An "empty jelly" section in a tomato combination of lack of water and/or lack of nutrients and that it almost ended up being thrown away because of end rot.

**Q: Can this work  on watermelon plants?**
A: The label says it works on melons, but it has to be sprayed on the buds when they first appear.

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**Shop now:** [https://www.desertcart.pt/products/4489515-rot-stop-tomato-blossom-end-rot-32-oz-ready-to](https://www.desertcart.pt/products/4489515-rot-stop-tomato-blossom-end-rot-32-oz-ready-to)

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*Product available on Desertcart Portugal*
*Store origin: PT*
*Last updated: 2026-09-23*